7-16 仮想指標に対するアルツハイマー病患者のDispartiy vergence特性

魚森 謙也, 村上 新治, 山田 光穂, 藤井 充, 吉松 浩, 中野 倫仁, 本郷 仁志, 上野 圭一, 深津 亮, 高畑 直彦

doi:10.11485/tvac.29.0_137

7-16 仮想指標に対するアルツハイマー病患者のDispartiy vergence特性

DOI

魚森謙也

松下電器産業(株)
村上新治

札幌医科大学
山田光穂

NHK放送技術研究所
藤井充

札幌医科大学
吉松浩

(株)ソニー
中野倫仁

札幌医科大学
本郷仁志

三洋電機(株)
上野圭一

NTTヒューマンインタフェース研究所
深津亮

札幌医科大学
高畑直彦

札幌医科大学

書誌事項

タイトル別名

Characteristics of disparity vergence of patients with Alzheimer's disease while viewing 3D virtual target

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説明

To clarify the stereopsis disturbance in patients with Alzheimer's disease, we analyzed vergence eye movemenet when subjects fused a field sequential stereoscopic image. We have already analyzed vergence eye movement with real stimuli and got a result that AD patients showed unstable, unproper vergence eye movements. In this study, the stereoscopic image moved abruptly between crossed and uncrossed disparity in every 5 seconds, and the change of disparity was 1 degree. Healthy controls showed typical vergence eye movement but the response was slightly slow and large in change of convergence angle in older subjects. As for patients with Alzheimer's disease, they tended to show similar responses to the older healthy controls, and all AD patients except one moderate patient showed disparity induced vergence eye movement in proper directions.