Posters, Monday 12 September Cognitive neurology and neuropsychology P2193 BEHAVIORAL AND NEURO-STRUCTURAL MARKERS OF EARLY EMPATHIC IMPAIRMENT IN THE BEHAVIORAL VARIANT OF FRONTOTEMPORAL DEMENTIA C. Cerami1, F. Cortese2, A. Dodich2, N. Canessa2, A. Marcone1, G. Chierchia3, E. Scola4, A. Falini4, S.F. Cappa1,2 1Department of Clinical Neurosciences, San Raffaele Scientific Institute, 2Vita-Salute University, Milan, 3University of Trento, Trento, 4Neuroradiology - CERMAC, Vita Salute University and San Raffaele Scientific Institute, Milan, Italy Background: Changes in social behaviour, loss of empathy and impairment of social insight are early and consistent symptoms of the behavioural variant of frontotemporal dementia (bvFTD), thus constituting key-elements for differential diagnosis. Materials and methods: We investigated alterations of empathy, both in its cognitive (Theory-of-Mind) and affective (emotional empathy) components, in 13 mild bvFTD patients (CDR≤1) and 39 age-, gender- and education-matched healthy controls. They performed a cartoon-task, requiring the identification of the correct ending (among three possible choices) of comic strip lacking verbal components and sub-divided in 3 conditions (Theory of mind-ToM; empathy-Emp, causal inferencesCaus), with either one or two interacting characters. VoxelBased-Morphometry (VBM) was used to correlate performance with grey-matter (GM) density, both in wholebrain and in a-priori regions-of-interest. Results: Behavioural results highlighted deficits in bvFTD, compared with controls, in all conditions and particularly in Emp with one character. VBM analyses showed significant correlations between both Emp and ToM performance and GM-density in the left temporo-parietal junction, right temporal pole and amygdala, structures previously associated with mentalizing. Anterior cingulate cortex and bilateral amygdala and insula (involved in emotional processing), were associated with performance in Emp conditions, while medial prefrontal regions were specifically associated with Emp involving two characters. Discussion: We provide behavioural and neuro-structural evidence, supporting the early impairment of cognitive and emotional empathy in bvFTD, associated with overlapping but distinct brain-networks. The emotional component of empathy (mainly associated with prefrontal, temporal and limbic damage) is particularly disrupted in mild bvFTD, thus representing a potential marker for early diagnosis. 413 P2194 THE “EXTENDED LOCKED-IN SYNDROME” M. Seidl1, S. Golaszewski1, A. Kunz1, Y. Krenn1, R. Nardone2, E. Trinka1, F. Gerstenbrand3 1Department of Neurology, Paracelsus Medical University Salzburg, Salzburg, Austria, 2Department of Neurology, F. Tappeiner Hospital, Meran, Italy, 3Karl Landsteiner Institute for Neurorehabilitation and Space-Neurology, Vienna, Austria The locked-in syndrome is one of the most devastating neurological conditions. However, despite thorough description of the condition and its clinical appearance, the classic locked-in syndrome, which is defined as quadriplegia, only vertical eye movement and blinking possible with preserved cognitive abilities, seems to be infrequently present. Since MRI verified isolated damage to the pons poses the finding in this certain case, the question arises, how the symptomatology increases, if additional lesions are found in cranial brain areas. Therefore, the terminus complete Locked-in syndrome was proposed in 1979, characterizing the total loss of voluntary muscle movement. However, as damage can spread to occur in main brainstem arousal centres and in more cranial brain areas, disablement of cognitive functions can be expected. Here, brain areas of special interest constitute the mesencephalic structures, especially the periaqueductal grey matter to the thalamic nuclei. In such remarkable cases, brain damage does not only affect the patients’ motor abilities, but also their consciousness. We demonstrate five cases of locked-in syndrome, each with different patterns of structural lesion, as obtained by 3T MRI in great detail and discuss how clinical appearance and imaging results relate to each other. The question will be approached if it is useful to differentiate extended forms locked-in syndrome with differentiated severe chronic disorders of consciousness as for instance akinetic mutism and parasomnial syndromes. We analyzed the lesions from the brainstem and propose a hierarchical scheme of consciousness. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 414 Posters, Monday 12 September P2195 P2196 POOR INTELLECTUAL PERFORMANCE IN ANTORETROVIRAL THERAPY NAÏVE NIGERIANS WITH HUMAN IMMUNODEFICIENCY VIRUS INFECTION CSF TOTAL TAU AND TAU PROTEIN PHOSPHORYLATED AT THREONINE 181 IN THE DIFFERENTIAL DIAGNOSIS OF ALZHEIMER’S DISEASE AND VASCULAR COGNITIVE IMPARIMENT T.A. Sunmonu1, O.A. Ogunrin2, M.A. Komolafe3, O.T. Afolabi4, F.O. Olanrewaju3, B.Y. Oladimeji5 Medicine, Federal Medical Centre, Owo, 2Medicine, University of Benin Teaching Hospital, Benin City, 3Medicine, Obafemi Awolowo University Teaching Hospitals Complex, 4Community Medicine, 5Mental Health, Obafemi Awolowo University, Ile Ife, Nigeria 1 Introduction: Sub-Saharan Africa carries the heaviest burden of human immunodeficiency virus infection in the world and cognitive impairment is a major clinical complication of this illness. The study was designed to assess the intellectual performance of anti retroviral therapy naïve Nigeria patients with HIV infection. Methods: 58 ART naïve HIV patients were studied along with 50 age, sex and educationally matched healthy seronegative controls. Clinical history was taken from each patient and general physical examination and neurological examinations were done on all the study participants. Blood samples were collected from the patients for HIV testing, CD4 cell count and packed cell volume. The patients were also staged clinically using WHO HIV staging system. The intellectual function of each subject was assessed with the aid of Wechsler Adult Intelligence scale adapted for Nigerians. The data was collated and analyzed with SPSS 15.0 software. Results: The HIV infected patients performed more poorly than normal controls in the Verbal IQ, Performance IQ and Full scale IQ scores (p<0.05). About 32 of 58 HIV infected patients (55%) had intellectual impairment (IQ<70) while 5 of 50 normal controls (10%) had Full scale IQ scores<70. Out of the laboratory clinical variables assessed it was only the patients’ weight that had significant impact on their intellectual performance (p<0.05) Conclusion: This study showed that ART naïve patients with HIV infection had significant intellectual impairment when compared with normal seronegative controls. In addition significant weight loss had deleterious effect on patients’ intellectual function. M. Boban1,2, H. Sarac1, M. Mladinov2,3, C. Süßmair4, N. Ackl4, B. Bader5, A. Danek4, N. Mimica2,6, P.R. Hof7, G. Simic2,3 Department of Neurology, University Hospital Centre, School of Medicine, University of Zagreb, 3Croatian Institute for Brain Research, Zagreb, Croatia, 4Neurologische Klinik, Klinikum der Universität München, 5Zentrum für Neuropathologie und Prionforschung, LudwigMaximilians-Universität München, Munich, Germany, 6University Department of Psychiatry, Psychiatric Hospital Vrapče, Zagreb, Croatia, 7Department of Neuroscience, Mount Sinai School of Medicine, New York, NY, USA 1 2 Alzheimer’s disease (AD) and vascular cognitive impairment (VCI) are the two most common causes of dementia in older age groups. Due to inadequacy of current clinical diagnostic criteria in differential diagnosis of dementia, the identification of new biomarkers that would help establishing the diagnosis and primary cause of the dementia is therefore of great relevance. The aim of this study was to investigate the diagnostic accuracy of two potential CSF biomarkers, total tau protein (t-tau) and tau protein phosphorylated at threonine 181 (p-tau181) in the differential diagnosis of patients with AD and VCI. The concentrations of CSF biomarkers were measured in 29 AD patients, 12 VCI patients and 25 control subjects. The CSF concentrations of both markers were significantly higher in AD group compared to VCI (p>0.001) group and control subjects (p<0.001); however none fulfilled the criteria for the "ideal" marker (sensitivity and specificity higher than 85%). Finally, using logistic regression analysis with t-tau and p-tau181 as independent variables led to improvement in diagnostic accuracy with correct classification in more than 85% of cases. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 415 P2197 P2198 ACUTE STROKE IN THE BASAL GANGLIA - CONSEQUENCES FOR REWARD BASED LEARNING EMPATHY PROCESSES IN NEURODEGENERATIVE DISEASES: PRELIMINARY RESULTS IN PARKINSON’S DISEASE (PD) U.K. Seidel1, O. Todica1, M. Wicking2, I. Daum3, C. Bellebaum3, D.M. Hermann1 Neurological Clinic, Vascular Neurology, University Hospital Essen, Essen, 2Institute of Neuropsychology und Clinical Psychology, Central Institute of Mental Health, Mannheim, 3Department of Neuropsychology, Institute of Cognitive Neuroscience, Ruhr-University Bochum, Bochum, Germany 1 Objectives: The basal ganglia (BG) play an important role in feedback learning. Deficits in reversal learning are presumably associated with focal lesions in the dorsal striatum. So far, research on BG functions has mostly been carried out in patients suffering from Parkinson’s disease, which does not only affect the BG, but also other brain regions. Methods: A probabilistic learning task based on feedback has been completed by 7 patients suffering from stroke in the BG and 13 neurologically healthy patients. Subjects had to form associations between different visual stimuli based on differential monetary feedback. Different aspects of reward-based learning, such as acquisition, reversal learning, impact of the quantity of the reward and acquired equivalence, were analyzed. Preliminary findings: Patients showed deficits in reward based learning. The number of correct responses and the number of trials until the learning criterion was reached corresponded to a large degree between stroke patients and healthy controls during memory acquisition and reversal learning. Patients revealed a deficit in learning a stimulus-stimulus association from feedback in a second acquisition phase as well as a significant lower memory span with digits (short-term memory and working memory). Conclusion: While the patients’ performance of the learning task did not differ in a first acquisition - reversal learning - or acquired equivalence task patients typically did not reach a predefined learning criterion in a second acquisition task. This indicates that a stroke in the BG impairs the ability to learn from feedback. P. Narme1, P. Krystkowiak1,2, M. Roussel1,2, H. Mouras1, O. Godefroy1,2 1Laboratoire de Neurosciences Fonctionnelles et Pathologies EA 4559, Université de Picardie Jules Verne, 2Department of Neurology, CHU Nord, Amiens, France PD is frequently associated with behavioural disorders that could affect the social functioning. Empathy, known as a crucial phenomenon in social relationships, could be reduced in PD. At least two dissociable processes are involved: emotional empathy (automatic contagion) and cognitive empathy (theory of mind -ToM). This study was conducted to assess 1) empathy processes in PD using an extensive neuropsychological battery and 2) relations between empathy and behavioural disorders. 18 PD patients and 34 healthy controls, matched for age and education level, were included. All have received a neuropsychological examination. Empathy was estimated with a scale filled out by caregivers. The emotional process was examined by a facial emotion recognition task and the cognitive one by two ToM tasks ("Faux pas"; "Yoni"). Patients with PD showed 1) a spared empathy as estimated by caregivers (p=0.83); 2) a facial emotion recognition impairment (p<0.001), unexplained by perceptual deficits (p=0.09), suggesting an emotional empathy impairment; 3) lower performance in the Faux pas task (p<0.005) and the Yoni task (only on cognitive ToM items, p<0.05) suggesting a cognitive empathy deficit. The Faux pas task was correlated with some behavioural disorders. Patients with PD show impairments in both emotional and cognitive processes of empathy, in contrary to the caregivers’ estimation. The neuropsychological examination of empathy seems interesting to better understand non-motor aspects of PD, such as behavioural disorders (especially the dysexecutive one, i.e. loss of interest, irritability...) © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 416 Posters, Monday 12 September P2199 P2200 EFFECTS OF REPETITIVE TRANSCRANIAL MAGNETIC STIMULATION ON HYPOTHALAMICPITUITARY-ADRENAL AXIS OF PATIENTS WITH DEPRESSION APATHY AND PARKINSON’S DISEASE Z. Gu Department of Psychiatry & Neurology, Affiliated Lianyungang Hospital, Medical College of Xuzhou, Lianyungang City, China Objective: To investigate the effects of sleep electroencephalogram-modulated repetitive transcranial magnetic stimulation (SEM-rTMS) and conventional rTMS (C-rTMS) on the activity of hypothalamic-pituitary-adrenal (HPA) axis in patients with depression. Methods: In a double-blind, randomized controlled trial, 164 patients diagnosed with depression were randomized to treatment with SEM-rTMS (n=57), C-rTMS (n=55) or sham rTMS (n=52) for 30 min every day for 10 d. Before and after treatment plasma concentrations of adrenocorticotropic hormone (ACTH) and cortisol (CORT) were measured, and the 24-item Hamilton Depression Rating Scale (HAMD-24) was used for assessment. Results: The HAMD-24 scores and plasma ACTH and CORT concentrations of these depressive patients before treatment were significantly different from those of the normal control group (p<0.05). The HAMD-24 scores and plasma ACTH and CORT concentrations in the SEM-rTMS group and conventional rTMS group were decreased significantly (p<0.05). There was a significant positive correlation between the HAMD-24 scores and plasma ACTH (n=240, r=0.105, p=0.048) and CORT concentrations (n=240, r=0.126, p=0.023) in patients with depression before and after treatment. Conclusion: The antidepressant effect of rTMS, including SEM-rTMS, may be related to its decreasing HPA axis activity. (This trail was registered. No: ChiCTRTRC-00000465) A. Ivanov Neurology, Dnepropetrovsk Medical Academy, Dnepropetrovsk, Ukraine Apathy is usually defined as a lack of motivation. It may occur as part of another disorder (notably depression and dementia) or as an isolated syndrome. In Parkinson’s disease (PD), apathy is common and several studies have reported an association between this condition and more severe cognitive symptoms, such as executive dysfunction. However, this association has not been thoroughly investigated. The aim of this study (in non-depressed, nondemented PD patients) was to examine whether or not cognitive decline and/or dementia occurred more frequently in apathetic subjects than in non-apathetic subjects. 30 consecutive PD patients participated in the study (15 with apathy and 15 without). None of the subjects were either demented or depressed at the time of study entry. The patients’ cognitive functions were extensively assessed twice: at study entry and after an 18-month follow-up period. At study entry, the apathetic PD patients had significantly lower global cognitive status and executive function scores than the non-apathetic subjects. After a median period of 18 months, the rate of conversion to dementia was found to be significantly higher in the apathetic group than in the non-apathetic group (7 of 15 and 1 of 15, respectively). Even in non-demented patients, the decrease over time in cognitive performance (mainly executive function but also memory impairment) was significantly greater in apathetic subjects than in nonapathetic subjects. These findings suggest that in nondemented, non-depressed PD patients, apathy may be a predictive factor for dementia and cognitive decline over time. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 417 P2201 P2202 PSEUDONEGLECT IN SCHIZOPHRENIA: THE ROLE OF THE RIGHT PARIETAL CORTEX THE CYTOTOXICITY OF INTRACELLULAR NON-SECRETORY EXPRESSED AMYLOID-BETA PEPTIDE M. Ribolsi, G. Lisi Y. Yang, Z.-N. Guo, J. Wu, X. Sun University of Rome Tor Vergata, Rome, Italy Neurology, The First Norman Bethune Hospital of Jilin University, Changchun, China Objectives: Pseudoneglect refers to the systematic leftward misbisection of horizontal lines made by healthy subjects. Aim of this study is to compare the performance at the line bisection (LB) among unipolar patients (UP), healthy subjects (HS), schizophrenia patients (SCZ) and first degree relatives of SCZ (FdR). Methods: 65 SCZ patients, 46 UP patients, 35 FdR and 103 HS were asked to perform LB. Furthermore, we investigated how transcranial direct current stimulation (tDCS) over both left and right parietal cortex influenced LB performances in a subgroup of 12 SCZ patients. Results: We report a lack of a significant leftward bias both in SCZ and, in a milder way, in FdR in comparison to UP and HS. Furthermore, LB performance of SCZ can be modified through a selective stimulation of the right posterior parietal cortex. Conclusions: A noteworthy finding never reported in literature before is that even first degree relatives of schizophrenic patients show a lack of leftward bias at LB. Furthermore, as pseudoneglect may be modified through a selective stimulation of the right posterior parietal cortex, we hypothesize a deficit of right-hemisphere function in SCZ patients. Objective: To established a retrovirus expression system that allowed the intracellular non-secretory expression of amyloid-beta(Abeta). And to explore the intracellular toxicity of Abeta. Methods: Clone and sequence Abeta gene. Establish the retrovirus expression system that allowed the intracellular non-secretory expression of Abeta, the vector plasmid pLxsn only and the report gene EGFP. And transfect the SK-N-SH cell. We compared the control, simple RV and Abeta group by morph observation, MTT and flow cytometry to detect of cytotoxicity of intracellular Abeta peptide. Result: We detected the expression and the transfect rate of the objective gene in the target cell by the report gene EGFP and flow cytometry, the result shows that recombinant RV transfect the SK-N-SH cell effectively. By morph observation, we found that Abeta group showed stronger cytotoxicity. MTT showed that the activity of the cell degraded, the growth rate of the cell became lower, and the exponential phase of growth and the platform phase disappeared. The flow cytometry showed that the normal cell of the Abeta group was obviously decreased, and the number of early apoptosis cells was increased, and so was the later apoptosis and the necrotic cells compared with the other two groups (p<0.01). Conclusion: We established a retrovirus expression system that allowed the intracellular non-secretory expressed amyloid-beta, which could transfect SK-N-SH cell effectively. Our data showed that intracellular non-secretory expressed amyloid-beta had stronger cytotoxicity and not only led to apoptosis, but also necrosis, which is different from the results reported before. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 418 Posters, Monday 12 September P2203 P2204 DIABETES MELLITUS AND COGNITIVE DECLINE: SCREENING SCALES ARE NOT SENSITIVE ENOUGH IN EARLY STAGES OF DISEASE THE ROLE OF CA1 -ADRENOCEPTOR ON SCOPOLAMINE INDUCED MEMORY IMPAIRMENT IN MALE RATS O. Kal’bus Department of Neurology, Dnepropetrovsk State Medical Academy, Dnepropetrovsk, Ukraine Background: Diabetes mellitus (DM) is a risk factor of MCI, Alzheimer’s disease, vascular dementia. Structure of cognitive impairment among type-2 DM patients was not studied in the Ukraine. Aim: To establish the cognitive decline structure in type-2 DM patients depending on duration of disease and to compare the sensitivity of screening scales (MMSE and FAB) and neuropsychological tests which are traditionally used in Ukraine. Design: 108 patient in age 35-65 (average age - 55.3±14.78) suffering from type-2 DM were assessed with MMSE, FAB, Luria test (short-term and long-term verbal memory assessment), Rybakov test (visual memory), Shulte tables (attention). The patients were divided into 3 groups depending on DM duration: first group - up to 5 years (n=35), second group - 6-10 years (n=41), third group more than 10 years (n=32). Results: The main domain in structure of cognitive impairment among type-2 DM patients is short-term memory decline, which correlates with duration of disease and dominates in all stages of disease. MMSE scale has not enough sensitivity to establish cognitive decline on early stage. Moderate attention decline is common for later stages of DM and correlates with MMSE. Visual memory impairment and frontal cognitive dysfunction are not common for DM patients. Mild long-term memory decline is only common for patients with long duration of DM (more than 10 years). Conclusion: A separate assessment of short-term memory is recommended for all patients suffering from type 2 DM in early stages of disease in spite of screening scales assessment results. N.S. Azami1, M. Heidari1, M. Jahanshahi2, M.-R. Zarrindast3 Islamic Azad University, Gorgan Branch, 2Neuroscience Research Centre, Golestan University of Medical Sciences, Gorgan, 3Dept. of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran 1 In the present study, the possible role of α-adrenergic receptors of the dorsal hippocampus on scopolamine statedependent memory in adult male Wistar rats was evaluated. The animals were bilaterally implanted with chronic cannulae in the CA1 regions of the dorsal hippocampus, trained in a step-through type inhibitory avoidance task, and tested 24 h after training to measure steps through latency. Post-training intra-CA1 administration of scopolamine (0.5 and 2µg/rat) dose-dependently reduced the step-through latency, showing an amnestic response. Amnesia produced by post-training scopolamine (2µg/rat) was reversed by pretest administration of the scopolamine (0.5 and 2µg/rat) that is due to a state dependent effect. Pre-test intra-CA1 injection of α1-adrenoceptor agonist, phenylephrine (0.25, 0.5µg/rat) in the dose range that we used, could not affect memory impairment induced by post-training injection of scopolamine (2µg/rat). However intra-CA1 pre-test injection of α2-adrenoceptor agonist, clonidine (0.5µg/rat) improved post-training scopolamine (2µg/rat) intra- CA1 injection induced retrieval impairment. Furthermore, pretest intra-CA1 microinjection of phenylephrine (0.25 and 0.5µg/rat) or clonidine (0.25 and 0.5 µg/rat) with an ineffective dose of scopolamine (0.25µg/rat), synergistically improved memory performance impaired by post-training scopolamine (2µg/rat). Our results also showed that, pretest injection of α1-receptor antagonist prazosin (1, 2 µg/rat) or α2-receptors antagonist yohimbine (1, 2µg/rat) before effective dose of scopolamine (2µg/rat) prevented the improvement of memory by pre-test scopolamine.These results suggest that α1- and α2-adrenergic receptors of the dorsal hippocampal CA1 region may play an important role in scopolamine-induced amnesia and scopolamine statedependent memory. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 419 P2205 P2206 CARDIOVASCULAR RISK FACTORS AND DISEASES AS PREDICTORS FOR COGNITIVE DISTURBANCES IN CHRONIC KIDNEY DISEASE ALZHEIMER’S PATIENTS TREATED WITH REPETITIVE TRANSCRANIAL MAGNETIC STIMULATION INTERLACED WITH COGNITIVE LEARNING TREATMENT SHOW IMPROVED COGNITIVE FUNCTION COMPARED TO CONTROL THAT LASTS AFTER TREATMENT PERIOD O. Todica1, M. Dalis1, J. Gronewold1, M. Volsek2, A. Kribben2, H. Bruck2, D.M. Hermann1 1Department of Neurology, 2Department of Nephrology, University Hospital Essen, Essen, Germany Cognitive deficits are common findings in patients with chronic kidney disease (CKD). Previous studies have shown that verbal memory and cognitive flexibility are the most often affected domains. There is strong evidence for association between CKD with cardiovascular risk factors and diseases. The precise link between these risk factors and cognition remains vague. 56 patients with stage 3-4 CKD (66±12 yrs.) were prospectively compared with a group of 21 patients with end-stage renal disease (ESRD) on dialysis (CKD 5; 60±15 yrs.) and a control group of 52 patients without CKD (59±11 yrs.). All participants were assessed with a neuropsychological test battery comprising tests for memory, information processing, cognitive flexibility and visuospatial abilities. Both groups of patients with CKD and ESRD performed significantly worse in comparison to the control group most of the cognitive measurements. Furthermore, patients with ESRD showed a significantly worse performance in scores for global cognition and in measurements for visuospatial abilities compared to patients with CKD 3-4 and healthy participants. The most important predictors for cognitive performance in the group of patients with CKD 3-4 were fibrinogen, indicating a role of inflammation in the pathogenesis of cognitive deficits. In patients with ESRD, on the other hand, cognitive deficits were predicted by HbA1c. Impaired kidney function is associated with deficits in specific cognitive domains with impairments becoming worse in the ESRD. Both the cognitive profile and the predictors of cognitive deficits differ between CKD 3-4 and ESRD, pointing towards different aetiologies of cognitive deficits in both conditions. J.M. Rabey1,2, E. Dobronevsky1, S. Aichenbaum1, M. Haigrecht1 Neurology, Asaf Harofe Hospital, Zrifin, 2Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel 1 Objective: To test the efficacy of using the combination of repetitive transcranial magnetic stimulation (rTMS) interlaced with cognitive training (CgT) for the treatment of Alzheimer’s disease (AD) patients. Patients and methods: A pilot study with 8AD treated patients followed by a second phase of a randomized controlled study with additional 12 patients (6 treatment, 6 control), MMSE 18 to 24 were recruited, all treatment patients were subjected to 30 daily sessions (45 mins; 6w), followed by bi-weekly maintenance sessions for 3M, of rTMS while performing CgT tasks, using the Non-Invasive Cortical Enhancement (NICE®, Neuronix, Israel) system. 6 cortical brain regions, were stimulated. CgT was specifically developed according to the regions stimulated. Control patients were following the same protocol while exposed to a sham device. Pilot study patients were assessed also after 9 month. Treatment effects were assessed using: ADAS-Cog, ADAS ADL, MMSE and CGIC. Results: ADAS-Cog results of both phases showed average improvements of -4.15 points after 6w in active treatment group compared to -0.87 in sham group and -4 after 4.5 months in treatment compared to +0.12 in control (p=0.03 and p=0.03, respectively). No side effects were reported. Average CGIC at 6w was 3.4 and control 4.17 (p=0.045) while at 20w treatment 3.6 and control 4.6 (p=0.03). AdasCog change after 9M follow-up of 7patients (4.5m with treatment and 4.5 without) was -2.78 from baseline. Conclusions: We conclude that based on the above results, the NICE system seems to offer a valuable tool for the treatment of cognitive functions in AD patients that lasts beyond treatment time. P2207 Abstract cancelled © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 420 Posters, Monday 12 September P2208 P2209 VOXEL BASED MORPHOMETRY ANALYSIS OF THE ANATOMICAL CORRELATES OF ’CLOSING-IN SIGN’ PERSISTENT PSYCHOSIS IN THREE SUSCEPTIBLE INDIVIDUALS WITH RIGHT INFERIOR FRONTAL LOBE STROKE S.-Y. Kwon, S.-J. Han, D.-W. Yang M. Devine1, P. Bentley2, B. Jones3, H. Jenkins2, P. Malhotra2 Neurology, The Catholic University of Korea Seoul St. Mary Hospital, Seoul, Republic of Korea Background and objectives: The “closing-in phenomenon” in figure-copying tasks refers to a tendency to copy near the target, or to overlap the target to be copied. The anatomical localization of the closing-in phenomenon has not been elucidated yet. This study investigates the neuro-anatomical correlates of “closing-in sign” with voxel-based morphometry (VBM) method. Materials and method: A total of 36 patients who were diagnosed as probable Alzheimer’s disease (AD) and 16 normal controls were included for the study. They were asked to copy the figure of alternating square and triangle, starting at the designated point and continuing from left to right. The distances of original figure and the patient’s at both extreme point (the starting point and ending point) were measured and the starting to end point distance ratio was calculated. All subjects underwent neuropsychological test to diagnose dementia and high resolution 3D MPRAGE brain MRI. We used SPM5 for the voxel based statistical analysis of gray matter loss according to the distance ratio of “closing-in sign”. Result: As regard to the closing-in sign, the AD patients showed a steeper slope than the normal controls. On VBM analysis, the AD patients have more parietal and temporal atrophy than normal controls, and the atrophy of frontal lobe was associated with the degree of closing-in sign. Conclusion: Our study, using an objective method of measuring the degree of closing-in and VBM analysis, suggests that the degree of closing-in is correlated with frontal lobe dysfunction. 1Institute of Neurology, University College London, 2Centre for Neuroscience, Imperial College London, 3Department of Radiology, Imperial College Healthcare NHS Trust, London, UK Background: Although delusions and auditory hallucinations following hemispheric stroke have been described, previous case reports have been varied and symptoms have often been specifically related to unawareness of deficit or abnormal bodily perception. To date there has been no previous use of lesion overlap analysis to identify a specific common neuro-anatomical locus for persistent psychosis secondary to stroke, although delusional ideation has been reported following lesions to the right frontal, parietal and temporal lobes, as well as subcortical structures. Patients: Here we report 3 cases of right hemisphere stroke associated with auditory hallucinations and paranoid delusional beliefs in addition to, in two cases, misidentification of carers as family members (Fregoli phenomenon). All 3 individuals previously never had psychotic symptoms but had consulted their medical practitioner for psychiatric issues. 1 had suffered from haemorrhage and the other 2 patients from infarcts. Methods: We mapped patients’ lesions to the MNI anatomical template before carrying out overlap analysis using MRIcro software. Results: The common region of damage in this group was the right inferior frontal gyrus and underlying white matter, including the superior longitudinal fasciculus. Unlike some previous studies of psychosis in the context of stroke, we found no evidence of significant atrophy in these patients. Conclusion: This result provides evidence of the key role for right frontal dysfunction and/or disconnection in the pathogenesis of psychosis, and in keeping functional imaging studies of schizophrenic patients which have demonstrated abnormal function and connectivity of this region. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 421 P2210 P2211 DEPRESSION IN PATIENTS WITH STROKE VALUE OF MONTREAL COGNITIVE ASSESSMENT IN IDENTIFYING PATIENTS WITH "VASCULAR COGNITIVE IMPAIRMENT NO DEMENTIA" AFTER CEREBRAL INFARCTION I.V. Pershina, O.B. Bondar, T.K. Mikhaielian Neuropathology and Neurosurgery, Kharkov Medical Academy of Postgraduate Education, Kharkov, Ukraine Depression is a common post-stroke disorder, which not only reduces the quality of life of the patients and the functional outcome of stroke, but also increases the mortality rate. The objective of the study is to examine the prevalence of post-stroke depression (PSD), its relation to the cognitive impairment and functional outcome. Material and methods: The data of 200 patients in acute stroke and in terms of 6, 12 months and 2 years after stroke have been studied. Patients were tested with Hamilton Depression Scale, Mini-Mental State Examination (MMSE), Barthel index and Rankin scale. All patients underwent neuroimaging study - MRI. Results: Depressive states were observed in 17% in the acute stage of stroke, in 35% after 6 months, 43% at one year and 56% at 2 years after stroke. In 48% of patients with ischemic stroke a focus was located in the right hemisphere, in 52% in the left hemisphere. Cognitive impairment, neurological and physical complications as well as the everyday life dependence were more pronounced in the patients with depression than without it, and it progressed with time. Conclusions: A significant number of patients has a PSD and its frequency increases by the 2nd year after stroke. In post-stroke period, all patients need psychological adjustment due to direct correlation between the development of depression and outcome of stroke (cognitive and neurological disorders). R. Zhao1, C. Wang2, N.-N. Shen1 1Neurology Department, The Affiliated Hospital of Medical College, Qingdao University, 2Neurology Department, Qingdao Mental Health Center, Qingdao, China 0bjective: To investigate the value of Montreal Cognitive Assessment (MoCA) in identifying patients with vascular cognitive impairment no dementia (VCIND) after cerebral infarction. Methods: Among the 119 cases of cerebral infarction, 71 subjects diagnosed with VCIND and 48 controls without cognitive impairment were assessed by the Mini-Mental State Examination (MMSE) and MoCA. Their demographic data and vascular risk factors were also documented. Results: 1) No significant differences were found between the two groups on age, gender, education level (P>0.05). 2) Total scores of MoCA and MMSE in the VCIND group were significantly lower compared with that in control group (p<0.05). There was high correlation between total scores of MoCA and MMSE by Pearson correlation analysis (r=0.779, p<0.05). 3) According to the ROC curve analyses, with the best cutoff score of 21, MoCA can provide a sensitivity of 83.1 and a specificity of 72.9% while the best cut-off score of MMSE is 26 with a sensitivity of 69.0% and a specificity of 66.7%. 4) Except language and abstraction, significant differences in other sub-items of MoCA were found between the two groups (p<0.05). 5) Logistic regression analysis showed that hypertension, diabetes mellitus, smoking and leukoaraiosis had correlation with VCIND (p<0.05). Conclusions: MoCA has higher sensitivity and specificity than MMSE in screening VCIND, and the optimal cut-off point of MoCA is 21. Patients with VCIND have extensive cognitive domains impairment. Hypertension, diabetes mellitus, smoking and leukoaraiosis are risk factors of VCIND. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 422 Posters, Monday 12 September P2212 P2213 REPEATED ADMINISTRATION OF DOPAMINERGIC AGENTS IN THE NUCLEUS ACCUMBENC AND MORPHINE-INDUCED PLACE PREFERENCE THE EFFECTS OF AT1/AT2 ANGIOTENSIN RECEPTOR ANTAGONISTS ON ANXIETY STATUS AND SOME OXIDATIVE STRESS MARKERS IN RATS Heidari1, M. N.-S. A. Rezayof3 Azami1, M.-R. Zarrindast2, Islamic Azad University, Gorgan Branch, Gorgan, Pharmacology, Tehran University of Medical Sciences, 3Animal Biology, University of Tehran, Tehran, Iran 1 2 In the present study, effects of repeated intra-nucleus accumbens (intra-NAc) administration of dopaminergic agents on morphine-induced place preference have been investigated. Effects of repeated intra-NAc injections of dopamine receptor agonist and antagonist on morphineinduced conditioned place preference (CPP) in rats were investigated by using an unbiased 3-day schedule of place conditioning design. Animals receiving once daily subcutaneous (s.c.) injections of morphine (0.5-7.5mg/kg) or saline (1.0ml/kg, s.c.) showed a significant place preference in a dose-dependent manner. The maximum response was observed with 5mg/kg of the opioid. Three days intra-NAc injections of apomorphine (0.5 and 1mg/rat) followed by five days free of the drug, increased or decreased, respectively, CPP induced by lower dose of morphine (0.5mg/kg, s.c.). The CPP induced by morphine was also significantly increased in animals that previously received the 3-days intra-NAc injections of SKF 38393 (4 and 8mg/rat) or quinpirole (2 and 4mg/rat, intra-NAc). The CPP induced by a higher dose of morphine (5mg/kg, s.c.) was significantly decreased in animals that had previously received the 3-days SCH 23390 (0.005 and 0.01mg/rat; intra-NAc). On the other hand, the CPP induced by morphine (5mg/kg, s.c.) was significantly increased in animals that had previously received the 3-days sulpiride administration (5mg/rat, intra-NAc). It is concluded that repeated injections of dopamine receptors agents followed by 5 days free of the drugs in the NAc can affect morphine reward. A. Ciobica1, L. Hritcu1, W. Bild2, M. Padurariu2, V. Bild2 Alexandru Ioan Cuza University, 2Gr.T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania 1 Introduction: In addition to its known classical roles, the renin angiotensin system (RAS) has more subtle functions, which include the regulation of emotional responses. Previous studies regarding the anxiety-related behaviour of RAS have shown controversial results. Also, there is evidence that oxidative stress accompanies angiotensin II infusion, but the role of AT1/AT2 specific receptors is not clear. The aim of this study was to evaluate the effects of central angiotensin II receptor blockers on anxiety state and oxidative stress. Material and methods: Each experimental group received individually losartan, PD-123177 or angiotensin II, icv administered (0.1µg/kg b.w.) through a cannula stereotaxically implanted in the left cerebral ventricle. Behavioural testing included elevated plus maze, while oxidative stress status was measured though the extent of a lipid peroxidation product (malondialdehyde-MDA) and the specific activity of some defence antioxidant enzymes (superoxide dismutase-SOD and glutathione peroxidaseGPx). Results: The rats treated with angiotensin II spent significantly less time in the open-arms of elevated-plusmaze, while the administration of losartan resulted in a significant increase of this time. We observed a significant increase of MDA concentration in angiotensin II group and decrease of MDA levels in both losartan and PD-123177 groups. Also, significant correlations between the time spent in the open arms and oxidative stress markers were found. Conclusions: This could raise important therapeutic issues regarding the anxiolytic effects of angiotensin II receptor blockers used primarily for hypertension, such as losartan and PD-123177. Also, it seems that oxidative stress could play an important role in these actions. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 423 P2214 P2215 POST-STROKE EPILEPSY AND DEPRESSION EXECUTIVE DYSFUNCTION SYNDROME COGNITIVE DECLINE IN THE ELDERLY POPULATION OF THE GuidAge STUDY A 5-YEAR FOLLOW-UP OF SUBJECTS WITH MEMORY COMPLAINTS N.Z. Radojkovic Gligic1, M.P. Petric2 1Stroke Unit, 2Neuropsychological Investigation, Hospital for Cerebrovascular Disease St. Sava, Belgrade, Serbia Background: Depression-executive dysfunction and poststroke epilepsy are independent sequels of stroke. Their coexisting influence on post-stroke cognitive decline is not well established yet. Methods: Prospective study of 577 post stroke patients performed (age 65±5.2 men/women ratio 381/196) all of them are diagnosed CT/MRI at acute stage. Patients were evaluated at 6 months and 1 year post-stroke. Cognitive function is daily activity evaluated by MMSE, WB-sp, Benton TVP, Test Bender-pictures test. Depressive symptoms assessed by Hamilton depression rating scale (ZUNG) and scale D from MMPi-201. According to test data patients were divided into 3 groups 1. With DES 2. Without DES 3. With PSE 4. Without PSE 5. With PSE and DES Groups did not differ due to vascular risk factors clinical demographic and radiological variables. Result from 577 patients: DES was diagnosed in 92 cases (16.67%), PSE in 105 (18.19%) coexistence of PSE and DES in 97 cases (16.95%). All patients with PSE and DSE had right hemispheric stroke. Comparison of these 3 groups revealed that patients with coexistence of DES and PSE had lower MMSE, worse ADL index Conclusion: Coexistence of DSE and PSE may have higher risk for developing post stroke dementia. Definite treatment options should be necessary to prevent development of this sequel to stroke. P.-J. Ousset1,2, N. Coley1,3, S. Andrieu1,3,4, H. Mathiex-Fortunet5, P. Garnier5, B. Vellas1,3 INSERM U 1027, University of Toulouse III, 2Memory Clinic, Gérontopole - University Hospital Purpan Casselardit, 3Gerontopole, University Hospital Purpan Casselardit, 4Epidemiology and Public Health Department, Toulouse University Hospital, Toulouse, 5Drug Development, Ipsen, Boulogne, France 1 Background: The GuidAge study assessed the potential efficacy of standardized Gingko biloba extract (EGb761) for the prevention of Alzheimer’s dementia (AD) in elderly subjects with memory complaints. The aim of this analysis was to describe the subjects who underwent clinically relevant cognitive decline during the 5 years of follow-up. Methods: 2,854 subjects aged 70 years or older, were assessed annually with a full cognitive battery. We identified subgroups of subjects who underwent either an increase of ≥0.5 points on the CDR, an increase of ≥3 points on the CDR sum of boxes (CDR-SB), a decrease of ≥3 MMSE points, or a decrease of ≥3 words on the Free and Cued Selective-Reminding-Test (FCSRT) total recall score. Results: An increase of ≥0.5 points on the CDR was observed in 845 subjects and ≥3 points on the CDR-SB in 149 subjects. 513 subjects had a decrease of ≥3 points on the MMSE, and 1047 a decrease of ≥3 words on the FCSRT.119 subjects underwent cognitive decline on both the CDR-SB and FCSRT, 134 on both the MMSE and FCSRT, and 100 on both the MMSE and CDR-SB. 81 subjects underwent cognitive decline on all 3 tests. Demographic and psychometric characteristics of these respective groups will be presented. Baseline factors predictive of cognitive decline will be established. Conclusions: The GuidAge study enabled 2854 elderly subjects with memory complaints to be followed-up for 5 years. Clinically relevant cognitive decline was observed in some subjects, and predictive factors will be described. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 424 Posters, Monday 12 September P2216 P2217 POST-STROKE DELIRIUM ASSESSMENT AND EPIDEMIOLOGY MILD COGNITIVE IMPAIRMENT AND ASYMPTOMATIC LACUNAR STROKE J. Bednarik1,2, A. Mitasova1, M. Kostalova1, R. Michalcakova1, P. Balabanova1, T. Kasparek3, S. Vohanka1, L. Dusek4 D. Cuciureanu1, A. Cuciureanu2 Department of Neurology, University Hospital and Masaryk University, 2Central European Institute of Technology, Masaryk University, 3Department of Psychiatry, University Hospital and Masaryk University, 4Institute of Biostatistics and Analyses, Masaryk University, Brno, Czech Republic 1 Introduction: Few studies have investigated the incidence of post-stroke delirium and results from existing studies reported incidence estimates ranging from 10% to 48%. Aim: To describe the epidemiology of delirium in a cohort of patients in the acute post-stroke period using DSM IV criteria and to determine criterion validity and overall accuracy of a tool for delirium assessment. Design: A prospective cohort study. Patients and methods: A consecutive series of 129 stroke patients (57 women and 72 men; mean age 72.5, range 35-93 years) admitted to the 6-bed stroke unit of a university hospital, were evaluated for delirium incidence. A serial daily follow-up began within 24 hours of stroke, continued for at least 7 days, and utilized the Czech version of the confusion assessment method for the Intensive Care Unit (CAM-ICU) and a reference standard evaluation using the DSM IV criteria for delirium. Results: An episode of delirium was detected in 55 stroke patients (42.6%). In 37 of these (67.3%), delirium began within 24 hours of admission. The sensitivity, specificity and overall accuracy of CAM-ICU in detection of delirium were 85.5%, 94.5%, and 91.5% respectively (95% confidence interval, 73-93%, 88-99%, and 83-96%). Conclusions: Post-stroke delirium may frequently be detected, provided that the testing algorithm is appropriate to the time profile of post-stroke delirium. Early (within 24 hours of stroke) and serial screening for delirium is recommended. CAM-ICU showed a high sensitivity and specificity for detecting delirium and should be considered an aid in delirium screening and assessment in post-stroke patients. Neurology, Emergencies Hospital ’ Prof.Dr. N. Oblu’, Iassy, Neurology, Emergency Hospital “Prof.Dr. N. Oblu”, Iasi, Romania 1 2 Purpose: To investigate the relationship between mild cognitive impairment and risk factors for chronic asymptomatic cerebrovascular disease in middle aged patients. Method: A sample of 46 consecutively evaluated subjects with MCI was followed-up for 1 year after a recruitment period of 2 year, in our neurological service. The patients, aged 55 - 70, had memory complaints, no stress, anxiety, depression or causal medication, but 30 of them had vascular risk factors. All met the operational criteria for MCI. Patients were investigated by clinical examination, neuropsychological test, brain computed tomography, vascular related blood tests. Results: The 46 patients were divided into 3 groups according to existing risk factors: 18 with hypertension, 12 other vascular risk factors and 16 without vascular risk factors. All patients had a Mini-Mental State Examination score greater than or equal to 24. Neuropsychological examination by “Repeatable Battery for the Assessment of Neuropsychological Status” (RBANS) revealed in the third group a predominant memory impairment with relative sparing of other cognitive domains and in 2 other groups multiple domain non amnestic MCI. Combined analysis of cerebral computed tomography and Neuropsychological examination concluded that the hypertension group had white matter ischemic changes (leukoaraiosis) in 25%, and asymptomatic lacunar stroke in 88% cases. Conclusion: Asymptomatic ischemic brain damage can lead to MCI. We speculate that every patient with long-term or uncontrolled vascular risk factors and minimal complaint of memory loss must promptly be investigated with neuroimaging techniques. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 425 P2218 P2219 ANTI-SACCADE PARADIGM AND COGNITIVE ASSESSMENT IN AMYOTROPHIC LATERAL SCLEROSIS CHANGES OF SOME OXIDATIVE STRESS MARKERS IN PATIENTS WITH ANXIETY DISORDER B. Poletti1, P. Meriggi2, A. Lafronza1, F. Solca1, L. Carelli1, N. Ticozzi1, S. Messina1, C. Morelli1, D. Meazzi3, P. Cipresso3, C. Lombardi4, G. Riva3, V. Silani1 M. Padurariu1, A. Ciobica2, B. Stoica1, R. Dobrin1, C. Stefanescu1 Department of Neurology and Laboratory of Neuroscience, “Dino Ferrari” Center - University of Milan - IRCCS Istituto Auxologico Italiano, 2Polo Tecnologico - Biomedical Technology Department, Fondazione Don Carlo Gnocchi Onlus, 3Applied Technology for Neuro-Psychology Lab, IRCCS Istituto Auxologico Italiano, 4Department of Cardiology, San Luca Hospital - IRCCS Istituto Auxologico Italiano, Milan, Italy Background: Oxidative stress has been associated with several diseases which are specific for the nervous system and recent studies also suggest that there is a possible link between oxidative stress status and generalized anxiety disorder. The aim of the present work was to evaluate the specific activity of some peripheral antioxidant defences like superoxide dismutase (SOD) and glutathione peroxidase (GPX) and the level of a lipid peroxidation marker (malondialdehyde - MDA) in patients with anxiety, in comparison with age-matched healthy subjects. Material and methods: Patients involved in this study met DSM-IV criteria for generalized anxiety disorder. Hamilton Anxiety Scale (HAMA) was used in order to quantify the severity of anxiety symptomatology. The biochemical assessments mainly included chemiluminometric and spectrophotometric methods. Results: We demonstrated a significant increase of MDA concentration in patients with anxiety, compared to the control group. On the contrary, the specific activity of GPX was significantly decreased in the anxiety group. When we determined the linear regression between HAMA scores vs. oxidative stress markers, we found a significant positive correlation between HAMA scores vs. MDA levels and also a significant negative correlation between HAMA scores vs. GPX activity. Conclusions: It seems that anxiety disorder is related to oxidative stress, as expressed by altered antioxidant enzyme activity and increased levels of lipid peroxidation. Although these results point to a possible use for antioxidants in the prevention or reduction of anxiety, further research is necessary to show whether anxious subjects need more antioxidants than non-anxious subjects. 1 Introduction: Frontal impairments in Amyotrophic Lateral Sclerosis (ALS) have been variously described and assessed in literature. Involvement of frontal function has recently been studied exploring ocular fixation with an eye-tracking technology. Anti-saccade paradigm is ideal in exploring frontal cognitive functions. In the anti-saccade paradigm subjects are instructed not to make a reflexive saccade to an appearing lateral target, but to make an intentional saccade to the opposite side. Objectives: Analyzing frontal cognitive functioning in ALS patients with the use of cognitive computerized measures and the anti-saccade paradigm. Methods: 15 patients fulfilling El Escorial criteria for ALS and 15 controls underwent an extensive neuropsychological and psychodiagnostic assessment. Different cognitive domains have been investigated with both cognitive traditional tools as well as computerized tests: reaction time, attention, eye-movements, executive functions, cognitive flexibility, language, problem solving. Eyemovements were measured using a 1750 Tobii eye-tracker. Results: Patients showed higher difficulties in the antisaccade task and in traditional neuropsychological tools. Significant differences and paradigmatic patterns of data emerged on different eye-movements/reaction times measures, while a general cognitive slowness characterized patients’ performances. Patients performed worse on frontal measures of cognitive functioning. Finally, they also showed significantly higher scores on depressive/anxious symptoms scales. Conclusions: Neuropsychological assessment revealed specific cognitive and psychological profiles, as well as peculiar alterations of eye-movements patterns. Computerized assessment seems more sensitive in detecting small ’frontal’ cognitive changes and in evaluating ALS longitudinally. These data suggest that oculomotor assessment and the anti-saccade paradigm may be useful for ALS cognitive assessment. 1 2 Gr.T. Popa University of Medicine and Pharmacy Iasi, Alexandru Ioan Cuza University, Iasi, Romania © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 426 Posters, Monday 12 September P2220 P2221 A NORMATIVE STUDY OF THE COLOR TRAILS TEST IN THE GREEK POPULATION THETA-BAND EEG ACTIVATION SIGNALING SPATIAL WORKING MEMORY FOR PERCEPTION DISCRIMINATION VERSUS THE PLANNING OF ACTION K. Konstantopoulos1, K. Spengos2 1Neurobiological Institute, Theodorou Theoxari Kotsika Foundation, 2Assistant Professor of Neurology, Eginition Hospital, Athens National University, Athens, Greece Introduction and aim: The Color Trails Test (CTT) is a neuropsychological test that measures perceptual tracking, sustained and divided attention and was created as a culturefree alternate to Trail Making Test. Recently, its use has been increased in neurological diseases such as Alzheimer’s disease, brain injury and subclinical infarction. The aim of the present study was to provide normative data for the CTT in the Greek population. Possible relationships with mental state, age and education were examined. Methods: A total of 314 native Greek speakers with various professional backgrounds took part in the study (113 males and 201 females). Exclusion criteria involved the existence of neurological and psychiatric diseases, history of alcohol and/or drug dependence, traumatic brain injury and a MMSE score below 24. Results: The participants were divided in 6 groups according to their age (20-29 n=50, 30-39 n=61, 40-49 n=58, 50-59 n=58, 60-69 n=50, 70-87 n=37, mean age 47.61 SD=16.15, mean education 13.07 SD=3.78). The mean value for CTT1 was 55.18 SD=22.18 and the mean value of CTT2 was 99.39 SD=36.16 (in seconds). Some correlations were found between age and CTT (CTT1 r=0.635 p<0.0005, CTT2 r=0.651 p<0.0005), between education and CTT (CTT1 r=-0.437, p<0.0005, CTT2 r=-0.475, p<0.0005) and between MMSE and CTT (CTT1 r=-0.267, p<0.0005, CTT2 r=-0.332, p<0.0005). Discussion: CTT is a promising tool for the measurement of attention in the Greek population. Further research is needed to use this test in Greek patients with various neurological diseases. F. Protopapa1, C. Siettos1, I. Evdokimidis2, N. Smyrnis3 School of Applied Mathematics and Physical Sciences National Technical University of Athens, 2Cognition and Action Group, Neurology Dept. National and Kapodistrian University of Athens, Aeginition Hospital, 3Dept. Psychiatry and Dept. of Neurology, Cognition and Action Group, National and Kapodistrian University of Athens, Aeginition Hospital, Athens, Greece 1 It is proposed that working memory (WM) is sub-served by different brain systems depending on the type of stimuli being processed (verbal versus spatial etc). It is also proposed that vision is decomposed in two processing streams, one used in perception and one used for the planning and execution of movements (action). We tested whether the segmentation of perception is extended in spatial WM. 10 healthy right-handed volunteers performed four visuospatial tasks while EEG was recorded from 62 electrodes on the scalp. Two tasks involved a pointing movement to a visual target and the other two involved a perceptual discrimination of this target location from that of a newly presented one. Each task involved two delay conditions, one where the target had disappeared in the delay (memory) and one where the target remained visible (no memory). Spectral analysis of the EEG signals during the delay period was performed at different frequency bands (from 0.01Hz to 70Hz in steps of 5Hz). Time-frequency analysis was also performed for selected frequency bands. A significant increase in theta power for parietal areas compared to frontal areas was observed for the memory condition in both movement and discrimination tasks. Time-frequency analysis showed that the memory increase of theta band in parietal areas started earlier for the perception discrimination task than for the movement task. These results indicate a specific memory network activated in spatial WM. The dynamics of this network in time dissociate spatial WM for action from spatial WM for perception. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 427 P2222 P2223 Ndel1 ACTIVITY AS A DIAGNOSTIC TEST FOR SCHIZOPHRENIA FAMILIAL CLUSTERING OF TRANSIENT GLOBAL AMNESIA A.G.D.A. Araripe Neto1, M. Machado2, C. Yonamine3, V. Oliveira2, R. Bressan1, M. Hayashi3 M. Galovic, L. Schilg, A. Felbecker Psychiatry, 2Biophysics, 3Pharmacology, UNIFESP, São Paulo, Brazil 1 Several lines of evidence suggest that disruption of normal neurodevelopment is a central physiopathological process in schizophrenia. Ndel1 plays multiple roles in neuronal development and its reported cysteine protease activity seems to be important for these processes. Cooperative interaction identified between Ndel1 and the schizophrenia risk gene Disrupted-in-Schizophrenia 1 (DISC1) seems to regulate neuronal morphogenesis and positioning during embryogenesis. The relationship between Ndel1 and schizophrenia at a genetic and biochemical level suggest that the oligopeptidase activity of Ndel1 may play a role in the etiology of major psychiatric disorders. Herein, we have evaluated 82 patients that fulfilled DSM IV criteria for schizophrenia assessed with the structured diagnostic interview (SCID) by experienced interviewers with good inter-rater reliability. All patients have been followed in schizophrenia program (PROESQ) of UNIFESP, and the diagnosis of schizophrenia was confirmed by 2 experienced clinicians. We included so far 42 healthy controls matched for sex, age and educational level. They have no personal psychiatric diagnosis assessed by SCID and no familial diagnosis of psychosis. We found that the enzymatic activity has a lower mean value in the patients group compared to healthy controls. This difference was statistically significant t(129) = 2,622 with a p value of 0.01. Enzymatic activity values were converted to z score once they did not follow a normal distribution. Our result indicates that Ndel1 activity may be a useful tool to differentiate patients and controls. The key role of Ndel1 activity in neurodevelopmental processes, makes it a promising target to further studies. Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland Background and objectives: The pathogenesis of transient global amnesia (TGA) is still unknown although several hypotheses exist. We describe the clustering of transient global amnesia in a Swiss family and discuss possible pathomechanisms. Methods/results: 4 out of 4 siblings as well as their mother suffered from acute onset ante- and retrograde amnesia. In 4 cases the diagnosis of TGA was established retrospectively. One case was evaluated during the acute phase at our department using standard laboratory exams, EEG, extracranial Doppler sonography and MRI-scan which rendered normal results without evidence of hippocampal lesions or internal jugular vein valve insufficiency. In all affected family members the symptom onset was approximately at the age of 70. In 4 out of 5 cases preceding Valsalva like manoeuvres were reported. Despite the familial clustering of TGA, every affected family member suffered TGA only once per lifetime to date. Conclusions: Familial incidence of TGA is a rare finding which might be underdiagnosed due to the transient and benign nature of the disorder. Further analysis of familial TGA might provide new insights into the pathomechanism of this disorder. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 428 Posters, Monday 12 September P2224 P2225 INVESTIGATION OF COGNITIVE DYSFUNCTION IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE AN IRON BAR THROUGH THE HEAD: A 50-YEAR FOLLOW-UP N. Buyukkoyuncu1, N. Turgut1, G. Altiay2, M. Demir3, H. Karadag4, B. Turgut3, T. Caglar2, H. Erbas5 Neurology Department, 2Chest Medicine, 3Hematology Department, 4Pharmacology Department, 5Biochemistry Department, Trakya University School of Medicine, Edirne, Turkey 1 Introduction: Chronic obstructive pulmonary disease (COPD) is a disease characterized with limitation of air flow. Cognitive problems can appear in advanced stage of this disease. A relationship is known between occurring COPD and levels of homocytein and total antioxidan capacity (TAC), and a relationship between cognitive dysfunction and level of homocystein and TAC. We aimed at the evaluation of cognitive functions in patients with COPD, and demonstration of the relationship between cognitive function and homocystein and TAC. Method: 28 COPD patients with acute exacerbation (hypoxic group) and 28 stabile COPD patients (non-hypoxic group) were included in the study. Control group included 25 healthy people. Homocystein and TAC were measured in patients and control groups. Cognitive functions were evaluated with standardized mini mental test (SMMT), clock drawing test (CDT), Blessed orientation memory concentration test (BOMCT), Benton’s face description test (BFDT) and the clinical dementia rating scale (CDRS). Results: Homocystein level was high in the hypoxic group (p=0.004), TAC levels were high in hypoxic and nonhypoxic groups (p=0.045), SMMT (p=0.000) and CDT values were low in hypoxic group (p=0.000), the CDRS values was high in hypoxic and non-hypoxic groups (p=0.000), BFDT values were low in hypoxic and nonhypoxic groups (p=0.000), BOMCT values were high in hypoxic group (p=0.000). There were a correlation between TAC and SMMT (r=0.582, p=0.001) and CDRS (r= -0.384, p=0.044). Conclusion: We demonstrated the presence of cognitive dysfunction in the COPD patients. Hypoxic patients had more profound cognitive dysfunction. In addition, we demonstrated a relationship between TAC and cognitive dysfunction. B.M. Aji, E. Ghadiali, A. Jacob, A.J. Larner Walton Centre for Neurology and Neurosurgery, Liverpool, UK Objective: To report clinical and cognitive findings in a patient 50 years after an iron bar passed through his head. Such cases have rarely been reported since the seminal report of Phineas Gage (1848), especially with long term follow-up. Results: At the age of 8, the patient suffered an accident in which an iron bar passed through the right side of his head (occipital to frontal). With surgery he made a good recovery, but was sent to a special school. He learned to drive aged 20, and was in paid employment for many years. Assessed at age 64, he had a mild left spastic dystonia. On MMSE he scored 30/30 and on Frontal Assessment Battery 15/18 (impaired inhibitory control and motor series). Neuropsychological assessment showed intellectual function in the average range but performance on tests of processing speed was at borderline. Language function was preserved. Copy of the Rey Figure showed difficulties in planning and was slow. On DKEFS he was impaired on measures of cognitive flexibility, abstract thinking, and category formation. Conclusions: Unlike Phineas Gage, this man suffered no dramatic change in personality following his brain injury, but did show impairments in some aspects of executive function on detailed neuropsychological testing. The early age at which the injury occurred, coinciding with preserved brain plasticity, may have permitted a relatively full recovery. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 429 P2226 P2227 DEVELOPMENT OF A COGNITIVE LEVEL EXPLANATION MODEL IN BRAIN INJURY - COMPARISONS BETWEEN DISABILITY AND NONDISABILITY EVALUATION GROUPS MELATONIN SECRETION, CHOLINERGIC SYSTEM AND COGNITIVE STATUS IN ACUTE PERIOD OF ISCHEMIC STROKE O.-L. Kim Background and aims: To determine the association between serum acetylcholinesterase level (AChE), melatonin sulphate level in urine (UMS) and cognitive status in acute stroke patients. 25 patients (aged 57.1±2.15 years) with first hemispheric ischemic stroke were examined within acute period with clinical and neuropsychological methods: NIHSS, MMSE, FAB, MoCA, Clock Drawing Test (CDT), Attention Assessment Test (AAT), Five Words Remembering Test (FWT) and Verbal Fluency Test (VFT). An assessment of serum AChE and UMS levels was performed. Control group consisted of 20 persons without cerebrovascular diseases. We used published data on UMS level in normal subjects (aged group 51-65, N=16, Me=20.4ng/mL). Results: Average result of NIHSS: Me (25%; 75%) =3 (2; 4). We noted differences in stroke patients and control group in results of MMSE (p=0.01), FAB (p<0.01), MoCA (p<0.01), CDT (p=0.01), AAT (p<0.01), FWT (p=0.02) and VFT (p<0.01). The UMS level was equal to 4.4 (2.2; 11.7) ng/mL. Correlations between UMS level and MMSE (r=-0.72; p=0.02), AAT (r=-0.76; p=0.03), VFT (r=-0.74; p=0.01) was revealed. The serum AChE level was equal to 7568(3288; 11559) nmol/sec/L. Interactions between serum AChE level and MMSE (r=0.56; p=0.01), sensitivity to interference (r=0.58; p=0.01), CDT (r=0.68; p=0.002), MoCA subtest “Attention” (r=0.59; p=0.009) were found. Conclusion: Acute stroke patients have a low level of melatonin secretion. In this group an association between melatonin secretion and cognitive status was revealed. The condition of cholinergic system and cognitive functions in able-bodied patients with minimal neurological deficit are interacting. The explanation of observed relationships demands further investigations. Yeungnam University Hospital, Daegu, Republic of Korea Objective: We investigated whether disability evaluation (DE) situations influence patients’ neuropsychological test performances and psychopathological characteristics and which variables play a role to establish an explanation model using statistical analysis. Methods: Patients were 536 (56.6%) brain-injured persons who met inclusion and exclusion criteria, classified into the DE group (DE; n=300, 56.0%) and the non-DE group (NDE; n=236, 44.0%) according to the neuropsychological testing’s purpose. Next, we classified DE subjects into DE cluster 1 (DEC1; 91, 17.0%), DE cluster 2 (DEC2; 125; 23.3%), and DE cluster 3 (DEC3; 84, 15.7%) via two-step cluster analysis, to specify DE characteristics. All patients completed the K-WAIS, K-MAS, K-BNT, SCL-90-R, and MMPI. Results: Comparison between DE and NDE, the DE group showed lower intelligence quotients and more severe psychopathologic symptoms, as evaluated by the SCL-90-R and MMPI, than the NDE group did. When comparing the intelligence among the DE groups and NDE group, DEC1 group performed worst on intelligence and memory and had more severe psychopathologic symptoms than the NDE group did. The DEC2 group showed modest performance increase over the DEC1 and DEC3, similar to the NDE group. Paradoxically, the DEC3 group performed better than the NDE group did on all variables. Conclusion: The DE group showed minimal “faking bad” patterns. When we divided the DE group into three groups, the DEC1 group showed typical malingering patterns, the DEC2 group showed passive malingering patterns, and the DEC3 group suggested denial of symptoms and resistance to treatment. A. Kulesh, V. Schestakov Neurology, Perm State Academy of Medicine, Perm, Russia © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 430 Posters, Monday 12 September P2228 P2229 CEREBELLAR NEUROCOGNITION: A NEW AVENUE IN COGNITIVE AND BEHAVIOURAL NEUROSCIENCE RELATIONS OF HYPERTENSION AND DEPRESSION-EXECUTIVE DYSFUNCTION SYNDROME IN HYPERTENSIVE STROKE PATIENTS P. Mariën1, R. Crols2 Neurolinguistics, 2Neurology, Algemeen Ziekenhuis Middelheim, Antwerpen, Belgium 1 Traditional neurological tenets posit that the cerebellum coordinates skilled voluntary movements and controls motor tone, posture, and gait. However, neuro-anatomical, clinical, and neuroimaging studies conducted over the past decades have convincingly shown that the cerebellum is also crucially implicated in a broad variety of cognitive and affective processes such as language, memory, visuospatial skills, executive functions, thought modulation, and emotional regulation of behaviour and affect. We present an introductory overview of the recently acknowledged concept of “cerebellar neurocognition” with special emphasis on the role of the cerebellum in motor and nonmotor language functions. Many studies have shown that cerebellar involvement in motor speech disorders is not limited to (ataxic) dysarthria but also encompasses mutism and apraxia of speech. At the non-motor level, a variety of neuro-linguistic disturbances have been identified after cerebellar lesions such as expressive agrammatism, semantic retrieval deficits, syntactic comprehension difficulties, depressed phonological verbal fluency and even frontal (dynamic) aphasia. Recently, studies on apraxic agraphia and dyslexia have indicated that the cerebellum may also be implicated in the written language network. In agreement with the findings indicating a topographical organization of the cerebellar structures involved in language pathology the concept of a ’’lateralized linguistic cerebellum” is briefly discussed. Rather than being the neuro-anatomical seat of cognitive and linguistic processes, the cerebellum may be considered to modulate cognitive functions through the feed forward loop of the corticoponto-cerebellar system and the feedback loop of the cerebello-thalamo-cortical pathways. S. Kapianidze1, M. Janelidze1, M. Beridze1, E. Devidze2, T. Maisuradze1, I. Urushadze3, L. Chinchaladze1, N. Guldedava1 Khechinashvili Medical University Hospital, 2Referal Hospital, 3Tbilisi Medical Academy Hospital, Tbilisi, Georgia 1 Background: Depression-executive dysfunction syndrome (DES) is a state leading to cognitive retardation, which represents the basis of vascular dementia. Establishment DES in hypertension stroke patients may help to choose patients with high risk of dementia, prevent the complications improve quality of life. Objectives: The aim of the study was assessment of DES prevalence among hypertensive stroke patients, who had previously treated and non-treated hypertension Patients and methods: Prospective study of 134 hypertensive stroke patients was carried out. (mean age 68±5.2; male/female ratio 76/58). Patients were divided into 2 groups: Group I - stroke patients with history of hypertension and previously treated (71 patients) and Group II - stroke patients with history of hypertension which were not treated previously (63 patients). Executive function was investigated by neuropsychological battery tests (letter fluency, Stroop test, Wisconsin Card Sorting test, digit span, letter number sequencing) and Hamilton depression rating scale (HAM-D), Anxiety scale, ADL Index, Barthel index. Results: DES in hypertension-treated stroke patients was found in 6 (8.4%), but in 11 non-treated (17.4%). Patients with DES in both groups had more damage on the left hemisphere, prevalence of ischemic damage with basal ganglia lesion. Multiple linear logistic regression analysis revealed the significant share of hypertension in the development of DES. II group have worse ADL, Barthel Index, higher score of anxiety. Conclusion: Patients with non-treated hypertension have a high risk for the development of DES, which is worsening the outcome of stroke © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 431 P2230 P2231 A CROSS-SECTIONAL SURVEY INCIDENCE AND RELATED FACTORS OF DEPRESSION DISORDERS IN ACUTE POST-STROKE PATIENTS AUDITORY EVOKED RESPONSES IN A COMPLEX MODEL OF SCHIZOPHRENIA IN RATS J. Zhou, C. Wang, Y. Wang, PRIOD G. Tuboly1, Z. Petrovszki2, P. Gombkötő2, A. Nagy2, G. Benedek2, G. Horváth2 Department of Neurology, Beijing TianTan Hospital, Capital Medical University, Beijing, China 1Department of Neurology, 2Department of Physiology, University of Szeged, Szeged, Hungary Objective: To survey the incidence of depression disorders within 14 days after stroke and to analyze its related factors. Methods: 462 inpatients, which were selected from April 2008 to December 2009 in the department of Neurology in Beijing Tiantan Hospital, 14 days post-stroke in the department of Neurology in Beijing Tiantan Hospital, were evaluated with the Hamilton Anxiety Scale -17 items (HAMD) and we analyzed factors such as gender, age, literacy, history and the type, sides or the National Institutes of Health Stroke Scale after stroke. Results: All the 462 patients completed HAMD scale assessments within 14±2 days, the incidence of depression disorder was 48.3% (n=223). 156 patients (33.8%) had mild depression disorders, 47 (10.2%) patients had moderate depression disorders, 4 (1.1%) patients had serious depression disorders. The females and the patients who had no history of drinking, had higher incidence of depression (p<0.05). The proportion of mild, moderate and serious depression disorders was higher in female patients (p<0.05). The proportion of mild and moderate depression disorders was higher in the patients graduated from elementary school; the proportion of mild depression disorders was higher in the patients who had history of respiratory disease (p<0.05). 11.7% of patients (26/223) with depression disorders were given drug intervention. Conclusion: About 1/2 of patients had depression disorders in acute stroke. The female patients, middle-aged and elderly patients should be paid special attention after stroke. At present, the intervention or treatment of depression disorders is not enough in comprehensive hospitals. Clinical studies have proved that schizophrenia is accompanied by sensory gating dysfunctions. Ketamine treatments and social isolation of rats reflect certain features of schizophrenia, therefore, we induced schizophreniarelated alterations by subchronic ketamine treatment and post-weaning social isolation in rats to examine their longlasting effects on auditory evoked potentials (AEP). Methods: Male Wistar rats (21 days of age) were either housed individually and treated with ketamine for 4 weeks or grouped without any treatments. At the age of 11 weeks animals were implanted with cortical electrodes. One week later pair-click stimuli were applied and AEPs were registered for two months. A positive peak (15ms) after the click, followed by a negative (35ms) and a late positive one at (60ms) could be identified. The amplitudes were determined as differences between peaks: P1-N1; N1-P2. Peak-latency and amplitude for the conditioning (first) and test (second) stimuli were analyzed. Results: The amplitude of the waves decreased significantly after the second stimuli; however, gating of treated animals was impaired. The latency of the first wave increased significantly in the schizophrenic rats as well. These changes were stable during the whole period investigated. Our model simulates the deficit in auditory gating observed in schizophrenia, suggesting that this paradigm might produce an appropriate animal model of schizophrenia for a long period. This work was supported by grants of TÁMOP 4.2.2.-08/01-2008-0002 and a Hungarian Research Grants (OTKA, PD75156 and K68594). © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 432 Posters, Monday 12 September P2232 P2233 COGNITIVE IMPAIRMENTS AND NEGATIVE EMOTIONS IN PATIENTS WITH TRANSIENT ISCHEMIC ATTACK EFFECT OF CONTINUOUS PERFORMANCE TASK ON EEG SYNCHRONIZATION R. Zhao1, C. Wang2 M.A. Nazari1, M. Ahmadlou2, F. Wallois3 1 Neurology Department, the Affiliated Hospital of Medical College, Qingdao University, 2Qingdao Mental Health Center, Qingdao, China 1University of Tabriz, Tabriz, 2Amirkabir University of Technology, Tehran, Iran, 3GRAMFC, University of Picardie Jule Verne, Amiens, France Objective: To examine cognitive impairments and negative emotions in patients with transient ischemic attack (TIA). Methods: Cognitive impairments and negative emotions were assessed in 56 TIA patients and 60 healthy controls. Cognitive impairments were tested using Montreal Cognitive Assessment(MoCAand Mini-mental State Examination (MMSE) negative emotions were tested using self-rating depression scale (SDS) and self-rating anxiety scale (SAS). Results: (1) Scores of MoCA and MMSE in the TIA group were significantly lower than those in the control group while Scores of SDS and SAS in the TIA group were significantly higher (p<0.01). (2) MoCA subitems such as space/ executive function score, named score, delayed memory score of the TIA group were significantly lower than that of the control group (p<0.05). (3) MMSE subitems such as immediate memory score, attention and calculation score, language ability score were significantly lower than that of the control group (p<0.01). (4) The sensitivity of MoCA was obviously higher than that of MMSE in evaluating cognitive impairment of TIA patients (83.9% VS 60.7% , x2=6.423, p<0.05). Conclusions: In TIA patients exist cognitive impairments and negative emotions, and MoCA may be a better measure to evaluate cognitive impairments of TIA patients than MMSE. Synchronization as a measure of quantification of similarities in dynamic systems is an important concept in many scientific fields such as neuroscience. A new measure of synchronization, fuzzy SL, was used to investigate the overall cortical functional connectivity during a cognitive task compared to resting conditions. High-resolution electroencephalogram (EEG) was recorded during eyesopen resting (EO1), continuous performance task (CPT), and eyes-open resting again (EO2) in 16 healthy children. Global fuzzy SL for delta and beta bands was calculated per condition. The opposite pattern was observed within conditions; delta increased but beta decreased from the EO1 to CPT condition. From the CPT to EO2, changes in the synchronization were also opposite. The findings might be interpreted as condition-specific modulation of functional connectivity of brain neuronal networks. P2234 THE CORRELATION OF COGNITIVE STATUS BETWEEN PATIENTS WITH ISCHAEMIC AND HAEMORRHAGIC STROKE R. Amanovic-Curuvija, S. Atic, N. Radojkovic-Gligic Hospital for Cerebrovascular Diseases ’Sveti Sava’, Belgrade, Serbia P2235 Abstract cancelled © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September 433 P2236 P2241 FEATURES OF COGNITIVE DISORDERS DEPENDED ON STRUCTURAL AFFECTIONS, VASCULARIED BY VERTEBROBASILAR VESSELS EXPRESSION OF microRNA 132 AND MeCP2 IN THE HIPPOCAMPUS OF ADULT MOUSE BRAIN AFTER TRACE FEAR CONDITIONING V.A. Yavorskaya, O.B. Bondar, I.V. Pershyna I. Liu, R. Phang, E. Wang Neuropathology and Neurosurgery, Kharkov Medical Academy of Postgraduate Education, Kharkov, Ukraine Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan R.O.C. P2237 DIFFERENTIAL DIAGNOSIS DIFFICULTIES IN PRIMARY PROGRESSIVE APHASIA: NONFLUENT VERSUS LOGOPENIC R.C.A.L. Miguel1, O. Ribeiro2, G. Horácio3, L. Alves4 Neurology, Lisbon Occidental Hospital Center, Egas Moniz, Lisbon, Portugal, 2Neuropsychology, Lisbon Occidental Hospital Center, Egas Moniz, Lisbon, Qatar, 3Neupsychology, Lisbon Occidental Hospital Center, Egas Moniz, 4Neurology, Lisbon Occidental Hospital Center, Egas Moniz and Medical Science University of Lisbon, Lisbon, Portugal 1 P2238 PROGRESSIVE COGNITIVE IMPAIRMENT IN A PATIENT WITH LEUKOENCEPHALOPATHY FOLLOWING CO-INTOXICATION H.A. Yi, H. Lee Neurology, Keimyung University Dongsan Medical Center, Daegu, Republic of Korea P2239 DEPRESSION SELF-ASSESSMENT AND PERFORMANCE ON THE WISCONSIN CARD SORTING TEST IN ALCOHOLDEPENDENT PATIENTS: A POSSIBLE RELATIONSHIP? N. Nešić, S. Pejić Special Hospital on Addictions, Belgrade, Serbia P2242 FRAMES OF REFERENCE FOR REPRESENTATION OF SUBJECTIVE "STRAIGHT AHEAD" POSITION O. Chelnokova1, E. Bobrova2 1Department of Psychology, University of Oslo, Oslo, Norway, 2Movement Physiology Laboratory, Pavlov Institute of Physiology, Russian Academy of Sciences, Saint Petersburg, Russia P2243 OLANZAPINE VERSUS HALOPERIDOL: WHICH CAN CONTROL STUTTERING BETTER? V. Shaygannejad1,2, A. Khatoon Abadi3 1Department of Neurology School of Medicine, Isfahan University of Medical, 2Isfahan Neuroscience Research Center, (INRC), Isfahan, 3Tehran University of Medical Sciences, (TUMS), Tehran, Iran P2244 MEMORY DYSFUNCTIONS AFTER MILD AND MODERATE TRAUMATIC BRAIN INJURY: COMPARISON BETWEEN PATIENTS WITH AND WITHOUT FRONTAL LOBE INJURY O.-L. Kim Neurosurgery, Yeungnam University Hospital, Daegu, Republic of Korea P2240 OPTIMUM CONTROL OF TOP-DOWN ATTENTION: LEARNING FROM A STOCHOCASTIC MODEL G. Veneri, E. Pretegiani, F. Rosini, P. Federighi, A. Rufa, A. Federico Dpt Neurological Neurosurgical&Behavioural Sci, University of Siena, Siena, Italy © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 434 Posters, Monday 12 September P2245 P2250 COGNITIVE POTENTIALS P300 AND ANXIETY APHASIA AS AN INITIAL SYMPTOM OF CREUTZFELDT-JAKOB’S DISEASE O. Ivetic1, V. Vasic2 G. Makrydakis, E. Anyfandi, C. Liapis, A. Bonakis, C. Routsis, A. Tsapanou, E. Spilioti, N. Kalfakis, S. Papageorgiou Department of Psychiatry and Medical Psychology, Faculty of Medicine, 2Department of Psychiatry and Medical Psychology, Medical Faculty, Novi Sad, Serbia 1 1st Neurology Dept., University of Athens, Athens, Greece P2251 P2246 SPECT IN DIFFERENTIAL DIAGNOSIS OF FTD BEHAVIORAL VARIANT VS. PSYCHOSIS: A CASE STUDY D.M. Pavlovic1, L. Brajkovic2, A.M. Pavlovic2 1Insttitute of Neurology, University of Belgrade, Medical Faculty, 2Institute of Neurology, Clinical Center of Serbia, Belgrade, Serbia THE GAIN MODULATION BY N-METHYLD-ASPARTATE IN THE PROJECTION NEURONS OF ROBUST NUCLEUS OF THE ARCOPALLIUM IN ADULT ZEBRA FINCHES D. Li South China Normal University, Guangzhou, China P2252 P2247 A RARE CAUSE OF DEMENTIA T. Gomes, F. Correia, J.M. Roriz Neurologia, Hospital Pedro Hispano, Matosinhos, Portugal THE CONTRIBUTION OF THE TWO HEMISPHERES TO LEXICALITY EFFECT IN READING ARABIC R. Ibrahim P2248 PRIMARY PROGRESSIVE APHASIA: A CASE PRESENTATION H. Ekmekci, S. Ozturk, A. Orhan Varoglu, A. Demir Neurology, Selcuk University Selcuklu Medical Faculty, Konya, Turkey P2249 A CASE OF CEREBRAL VENOUS SINUS THROMBOSIS PRESENTING AS PSYCHOSIS IN ELDERLY PATIENTS R. Yeni Albay1, B. Ozdilek2, F. Mayda Domac2, E. Aydin Sunbul1, S. Isitmez1, G. Unal1 Psychiatry, 2Neurology, Erenkoy Mental Research and Training Hospital, Istanbul, Turkey 1 The Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, University of Haifa, Haifa, Israel P2253 STATUS OF MEMORY LOSS P.M. Iyer1, M. Farrell2, G. Mullins3, J. Moroney1, N. Delanty1 1Neurology, 2Neuropathology, 3Neurophysiology, Beaumont Hospital, Dublin, Ireland P2254 A NOVEL SENSORY ODDBALL PARADIGM FOR P300 ELICITING K.-C. Li1, S.-C. Yeh2, K.-H. Xue1, C.-C. Chen1 1Graduate Institute of Biomedical Engineering, National Central University, Jhongli City, 2Computer Science, Computer Science and Information, Taoyuan, Taiwan R.O.C. © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620 Posters, Monday 12 September P2255 P2259 NEUROCHEMICAL ANALYSIS OF SOCIAL BEHAVIOR AND MEMORY IN RELATION TO DEVELOPMENTAL DISORDERS NEUROLOGICAL AND NEUROVISUAL DATA IN A PATIENT WITH PITUITARY APOPLEXY: A CASE REPORT. O. Lopatina1,2, A. Inzhutova2,3, H. Higashida1 M.G. Zhestikova1, T.V. Karpinskay2, I.I. Sholomov3, E.A. Ganovich - Novikova4, V.A. Minenkov1 Kanazawa University Graduate School of Medical Science and School of Medicine, Kanazawa, Japan, 2Krasnoyarsk State Medical University Named after Prof. V.F. VojnoYasenetsky, Krasnoyarsk, Russia, 3Helsinki University, Helsinki, Finland 1 P2256 BODY DYSMORPHIC DISORDER’S DRIFT TOWARD FRONTO-TEMPORAL DEMENTIA P.F. Fiori1, A. Monaco1, L.M. Giannetti2 Neurology, Civil Hospital of Ariano Irpino (AV) - ASLAV II University of Naples, 2Infantile Neuropsychiatry, Civil Hospital of Ariano Irpino (AV) - Social Service - ASLAV II University of Naples, Ariano Irpino, Italy 1 435 1Neurology, State Educational Establishment of Additional Medical Education “Novokuznetsk Post-Graduate-Medical Institute” Russian Health Care, 2MRI-Department, Municipal Clinical Hospital, Novokuznetsk, 3Neurology, Saratov State Medical University named after V.I. Razumovsky, Saratov, 4Neurology, Federal State Establishment The Rehabilitation Centre of Social Insurance Fund of the Russian Federation «Topaz», Myski, Russia P2260 PATHOGENESIS OF COGNITIVE NEUROSIS-LIKE DISORDERS IN PATIENTS WITH INITIALLY CHRONIC VIRAL ENCEPHALITIS N. Filippovich1, N. Stahejko2, A. Filippovich3 P2257 Belarus Medical Academy of Post Graduate Education, Minsk Regional Clinical Hospital, Minsk, 3Republican Scientific Practical Center of Medical Examination and Rehabilitation, Minsk Region, Belarus 1 2 PREVALENCE OF ATTENTION DEFICIT DISORDERS IN CHILDREN IN BOSNIA AND HERZEGOVINA A. Bajraktarevic1, N. Kreso Dizdarevic1, E. Lokmic1, S. Popovic2, S. Fadilpasic2, I. Lutolli3, B. Djukic4 Pediatrics Department, Public Health Institution of Canton Sarajevo, 2Psychiatry for Children, Clinical Medical Center Sarajevo, 3Neuropediatrics, Pediatrics Clinic, 4Pediatrics Department, First Medical Aid, Sarajevo, BosniaHerzegovina 1 P2258 P2261 RADIO ELECTRIC ASYMMETRIC CONVEYOR IN THE TREATMENT OF BEHAVIORAL AND PSYCHIATRIC SYMPTOMS ASSOCIATED WITH COGNITIVE IMPAIRMENT IN ELDERLY PATIENTS P. Mannu1, V. Fontani1, A. Castagna1, S. Rinaldi1,2 PRIMARY PROGRESSIVE APHASIA: CLINICAL, RADIOLOGICAL AND NEUROPSYCHOLOGICAL FEATURES 1Neuro Psycho Physical Optimization, Instituto Rinaldi Fontani, 2School of Occupational Medicine, University of Florence, Florence, Italy H. Khiari, I. Marouani, S. Chebbi, N. Oudia, A. Cherif, T. Bellaej, A. Mrabet, H. Khiari, I. Marouani, S. Chebbi, N. Oudiaa, A. Cherif, T. Bellaj, A. Mrabet Charles Nicolle Hospital, Tunis, Tunisia © 2011 EFNS European Journal of Neurology 18 (Suppl. 2), 344–620
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