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The role of the posterior parietal cortex in oculomotor control Kenji Kawano 1 , Aya Takemura 2 , Naoko Inaba 2 1Department of Integrative Brain Science, Graduate School of Medicine, Kyoto University 2Neuroscience Research Institute, AIST Keyword: サッケード , 円滑追跡眼球運動 , 追従眼球運動 , 輻輳開散眼球運動 pp.557-566
Published Date 2004/8/10
DOI https://doi.org/10.11477/mf.1431100211
  • Abstract
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 It has been known in clinical studies that lesions of the parietal cortex cause disturbances of ocular motility. Using behaving awake monkeys, Mountcastle and his colleagues revealed that in the posterior parietal cortex there are neurons whose activities are related to eye movements and are classified into three groups:visual fixation neurons, visual tracking neurons, and saccade neurons. Later, local chemical lesion studies and electrical stimulation studies were conducted in the posterior parietal cortex and revealed that the LIP area is engaged in controlling saccadic eye movements and the MT/MST area in smooth pursuit eye movements. Recent electrophysiological and chemical-lesion studies of using sudden movements of large-field visual stimuli revealed a possible role of the MT/MST area in short-latency ocular tracking responses, i. e. ocular following responses, disparity-vergence, and optic-flow vergence eye movements.


Copyright © 2004, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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