歩行障害を示す神経系疾患における視覚・運動系の検索　　アイカメラによる分析

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書誌事項

タイトル別名
  • A study of visuo-motor system on patients with central nervous system disorders: Analysis by Eye Camera.
  • ホコウ ショウガイ オ シメス シンケイケイ シッカン ニ オケル シカク
  • ANALYSIS BY EYE CAMERA
  • アイカメラによる分析

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説明

Visuo-motor system was studied by Eye Camera on patients with central nervous system disorders; patients with hemiplegia, ataxia and parkinsonism, and normal controls. The subjects with Eye Camera were asked to walk in 10 meter, with trying to fix his eyes on one point of the wall in front of him. Number of his steps and time required were measured, and the movemnts of the point of his gaze were analysed by using video tape. The area surrounded by the movement of the point of the gaze, the distance of vertical movement and horizontal movement were measured, and the ratio of horizontal movement to vertical movement was calculated.<br>The results were as follows; 1) number of steps and time required: patients took nealy twice steps and time as many as normal control, and the numbers were largest in patients with hemiplegia. 2) the form of the movement of gaze: each group of the patients showed each specific form of the movement of gaze, and especially in cases with ataxia, it was very large irregular form. 3) the area surrounded by the movement of position of the gaze: the largest in patients with ataxia and the smallest in patients with parkinsonism. 4) the vertical movement: the biggest in normal control, slight smaller in ataxia, much smaller in hemiplegia and the smallest in parkinsonism. 5) the horizontal movement: the smallest in control, bigger in cases with ataxia and hemiplegia than in cases with parkinsonism. 6) the ratio of horizontal movement to vertical movement: smaller than 0.5 in normal control, and bigger than 0.5 in all patients with central nervous disorders. 7) the deviation of the point of gaze from the midline: tendency of deviation to left side in all cases examined. In hemiplegia, horizontal movement was bigger in cases with left hemiplegia than in cases with right hemiplegia. 8) the change with age: in control and parkinsonism, the vertical movement and the area showed the decrease with age, but in ataxia, the horizontal movement and the area tended to increase with age.

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