Search Results - "Bour, L J"

A meta-analysis of P50 studies in patients with schizophrenia and relatives: Differences in methodology between research groups by de Wilde, O.M, Bour, L.J, Dingemans, P.M, Koelman, J.H.T.M, Linszen, D.H

“…Abstract Objective To determine whether patients with schizophrenia as well as their relatives show deficits in sensory gating reflected by an abnormal P50…”
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Automatic noise-level detection for extra-cellular micro-electrode recordings by Dolan, Kevin, Martens, H. C. F, Schuurman, P. R, Bour, L. J

“…Extra-cellular neuro-recording signals used for functional mapping in deep brain stimulation (DBS) surgery and invasive brain computer interfaces, may suffer…”
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Neurophysiological Aspects of Eye and Eyelid Movements During Blinking in Humans by Bour, L. J, Aramideh, M, Ongerboer de Visser, B. W

“…Department of Neurology/Clinical Neurophysiology, Academic Medical Centre, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands Bour, L. J., M…”
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Failure to Find P50 Suppression Deficits in Young First-Episode Patients With Schizophrenia and Clinically Unaffected Siblings by de Wilde, O. M., Bour, L. J., Dingemans, P. M., Koelman, J. H. T. M., Linszen, D. H.

“…Objective: To evaluate whether the P50 gating deficit is present in young first-episode patients with schizophrenia and their healthy young siblings. Methods:…”
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Robust EMG–fMRI artifact reduction for motion (FARM) by van der Meer, J.N, Tijssen, M.A.J, Bour, L.J, van Rootselaar, A.F, Nederveen, A.J

“…Abstract Objective Current template-based artifact reduction methods are inadequate to reduce irregular volume- and slice-artifacts induced by limb motion in…”
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Increased saccadic rate during smooth pursuit eye movements in patients at Ultra High Risk for developing a psychosis by van Tricht, M.J., Nieman, D.H., Bour, L.J., Boerée, T., Koelman, J.H.T.M., de Haan, L., Linszen, D.H.

“…Abnormalities in eye tracking are consistently observed in schizophrenia patients and their relatives and have been proposed as an endophenotype of the…”
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Normal cortical excitability in Myoclonus-Dystonia — A TMS study by van der Salm, S.M.A., van Rootselaar, A.F., Foncke, E.M.J., Koelman, J.H.T.M., Bour, L.J., Bhatia, K.P., Rothwell, J.C., Tijssen, M.A.J.

“…The aim of the present study is to investigate cortical excitability in patients with DYT 11 positive Myoclonus-Dystonia (M-D), using transcranial magnetic…”
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P300 deficits are present in young first-episode patients with schizophrenia and not in their healthy young siblings by de Wilde, O.M, Bour, L.J, Dingemans, P.M, Koelman, J.H.T.M, Boerée, T, Linszen, D.H

“…Abstract Objective To evaluated P300 (P3b) abnormalities in young first episode patients with schizophrenia and their healthy young siblings. Methods An…”
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Oculomotor abnormalities in myoclonic tremor: a comparison with spinocerebellar ataxia type 6 by Bour, L. J., van Rootselaar, A. F., Koelman, J. H. T. M., Tijssen, M. A. J.

“…In the present study, eye movements are recorded in two patient groups with an autosomal dominantly inherited cerebellar disorder, i.e. spinocerebellar ataxia…”
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Directionality of corticomuscular coupling in essential tremor and cortical myoclonic tremor by Sharifi, S., Luft, F., Potgieter, S., Heida, T., Mugge, W., Schouten, A.C., Bour, L.J., van Rootselaar, A.F.

“…•Renormalized partial directed coherence is a suitable approach to investigate corticomuscular directionality in tremor.•An efferent cortical drive is lacking…”
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intermuscular 3-7 Hz drive is not affected by distal proprioceptive input in myoclonus-dystonia by van der Meer, J. N, Schouten, A. C, Bour, L. J, de Vlugt, E, van Rootselaar, A. F, van der Helm, F. C. T, Tijssen, M. A. J

“…In dystonia, both sensory malfunctioning and an abnormal intermuscular low-frequency drive of 3-7 Hz have been found, although cause and effect are unknown. It…”
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Closing the loop: Novel quantitative fMRI approach for manipulation of the sensorimotor loop in tremor by Sharifi, S., Luft, F., de Boer, L., Buijink, A.W.G., Mugge, W., Schouten, A.C., Heida, T., Bour, L.J., van Rootselaar, A.F.

“…•Sensori/motor network disentangled with novel closed-loop fMRI setup.•The inferior olive seems to play a modulating role in essential tremor.•Sensorimotor…”
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Eye movement abnormalities in essential tremor versus tremor dominant Parkinson’s disease by Visser, F., Bour, L.J., Lee, Y.X., ten Brinke, T.R., van Rootselaar, A.F.

“…•Saccade features differ between essential tremor (ET) and tremor dominant Parkinson’s disease (PD-T).•Both patient groups have a reduced sustained smooth…”
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Clinical and neuropsychological correlates of the P300 in schizophrenia by Nieman, D.H., Koelman, J.H.T.M., Linszen, D.H., Bour, L.J., Dingemans, P.M., Ongerboer de Visser, B.W.

“…We investigated the relationship between the P300, neuropsychological test performance and symptomatology in recent-onset schizophrenic patients ( n=45) to…”
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Tic related local field potentials in the thalamus and the effect of deep brain stimulation in Tourette syndrome: Report of three cases by Bour, L.J, Ackermans, L, Foncke, E.M.J, Cath, D, van der Linden, C, Visser Vandewalle, V, Tijssen, M.A

“…Highlights • Event related spectral perturbations of thalamic local field potentials (LFP) and coherences with EEG reveal synchronous discharges starting…”
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The auditory startle response in post-traumatic stress disorder by SIEGELAAR, S. E, OLFF, M, TIJSSEN, M. A. J, BOUR, L. J, VEELO, D, ZWINDERMAN, A. H, VAN BRUGGEN, G, DE VRIES, G. J, RAABE, S, CUPIDO, C, KOELMAN, J. H. T. M

“…Post-traumatic stress disorder (PTSD) patients are considered to have excessive EMG responses in the orbicularis oculi (OO) muscle and excessive autonomic…”
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Neuropsychological and clinical correlates of antisaccade task performance in schizophrenia by NIEMAN, D. H, BOUR, L. J, LINSZEN, D. H, GOEDE, J, KOELMAN, J. H. T. M, GERSONS, B. P. R, ONGERBOER DE VISSER, B. W

“…To elucidate pathophysiologic mechanisms involved in abnormal antisaccade task performance in schizophrenia by investigating a possible relationship among…”
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Non-decussating retinal-fugal fibre syndrome. An inborn achiasmatic malformation associated with visuotopic misrouting, visual evoked potential ipsilateral asymmetry and nystagmus by Apkarian, P, Bour, L J, Barth, P G, Wenniger-Prick, L, Verbeeten, Jr, B

“…We report a newly identified syndrome in which nasal retinal fibres fail to decussate due to the inborn absence of an optic chiasm. Visual evoked potential…”
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Directional Recording of Subthalamic Spectral Power Densities in Parkinson's Disease and the Effect of Steering Deep Brain Stimulation by Bour, L.J, Lourens, M.A.J, Verhagen, R, de Bie, R.M.A, van den Munckhof, P, Schuurman, P.R, Contarino, M.F

“…Abstract Background A new 32-contacts deep brain stimulation (DBS) lead, capable of directionally steering stimulation, was tested intraoperatively. Objective…”
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Functional neuronal activity and connectivity within the subthalamic nucleus in Parkinson’s disease by Lourens, M.A.J, Meijer, H.G.E, Contarino, M.F, van den Munckhof, P, Schuurman, P.R, van Gils, S.A, Bour, L.J

“…Highlights ► Significantly different firing behavior of single units has been demonstrated in the sensorimotor part of the STN compared to the remaining part…”
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