Study of role of spatial orientation in control of action

空间定向在行动控制中的作用研究

基本信息

批准号：
08671967
负责人：
TAKAHASHI Masahiro
金额：
$ 1.22万
依托单位：
Yamaguchi University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08671967/
关键词：
spatial orientation stance force platform 重心動揺

项目摘要

1) Experimental demonstration of the relation of spatial orientation to action controlDuring passive locomotion, the sensation and bodily balance of a driver are quite different from those of a passenger. Therefore, it seems likely that what the brain perceives determines the contents of sensation as well as action. The hypothesis was supported by the present experimental Coriolis stimulation, in which eye movements and bodily balance were recorded while a subejct was standing on a rotating platform.2) Production of an experimental device (rotating platform)Although tilting of a head during passive rotation produces curious eye movements and shifting of the center of pressure, it was hard to explain the phenomenon by a simple rule. In this study, we recorded eye movements and the center of pressure while subjects stood on a rotating platform. Recording was done under both visible and invisible conditions. Eye movements and bodily balance were equally influenced by the vector of the outer world in the brain which can be simply obtained by vector analysis.3) Proposal of a rule for passive and activ control of actionWhile rotating under an invisible condition, the space of outer world in the brain stays stationary since rotation is not perceived. When Corilois stimulation is given, the space in the brain is temporarily occupied by the vector from the labyrinth. As a result, curious eye movements and shift of bodily balance are produced. On the other hand, visible outer world rotates the space in the brain reversely. Although tilting of a head displaces the space in the brain, vestibular input by Corilois stimulation is added to the tilted coordinates in the brain. As a result, the space in the brain is preserved upright irrespective of head tilting.

1）空间定向与动作控制关系的实验论证在被动运动过程中，驾驶员的感觉和身体平衡与乘客有很大不同。因此，大脑的感知似乎决定了感觉和行动的内容。该假设得到了当前实验科里奥利刺激的支持，其中记录了受试者站在旋转平台上时的眼球运动和身体平衡。2）实验装置（旋转平台）的制作尽管在被动旋转过程中头部倾斜会产生好奇的眼球运动和压力中心的移动，很难用简单的规则来解释这种现象。在这项研究中，我们记录了受试者站在旋转平台上时的眼球运动和压力中心。记录是在可见和不可见的条件下进行的。眼球运动和身体平衡同样受到大脑中外部世界向量的影响，这可以通过向量分析简单获得。 3）提出被动和主动控制动作的规则在不可见条件下旋转时，外部世界的空间由于感知不到旋转，大脑中的世界保持静止。当给予科里罗瓦刺激时，大脑中的空间会暂时被来自迷宫的矢量占据。结果，产生了好奇的眼球运动和身体平衡的改变。另一方面，可见的外部世界使大脑中的空间反向旋转。尽管头部的倾斜会取代大脑中的空间，但科里罗瓦刺激的前庭输入会添加到大脑中的倾斜坐标中。因此，无论头部如何倾斜，大脑中的空间都保持直立。