Characteristics of visual feedback in postural control during standing.
Characteristics of visual feedback in postural control during standing.
复制标题
站立时姿势控制的视觉反馈特征。
DOI：
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复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
H. Minamitani
中科院分区：
文献类型：
--
作者：
Y. Fukuoka;K. Tanaka;A. Ishida;H. Minamitani
本研究对姿势控制中的视觉反馈系统进行了研究。为了抑制前庭和本体感觉反馈路径，受试者站在具有固定背部支撑的测力板上。由于受试者的身体在这些条件下是不可移动的，受试者控制一个模拟身体动力学的计算机模型。模型的摇摆角信息通过视觉反馈。在此条件下，频率响应函数的踝关节力矩响应的摇摆角进行了计算。实验结果表明，视觉反馈系统包含一个大的时间延迟，因此，视觉系统本身不允许一个对象保持直立的姿势。索引条款-反馈控制，频率特性，识别，姿势，视觉感官反馈。
In the present study, the visual feedback system in postural control was investigated. To suppress the vestibular and proprioceptive feedback paths, a subject stood on a force-measuring plate with a fixed back support. Because the subject's body was immovable under these conditions, the subject controlled a computer model which simulated body dynamics. Information on the sway angle of the model was fed visually. Under this condition, frequency response functions for the ankle moment in response to the sway angle were calculated. The experimental results suggest that the visual feedback system contains a large time delay and, consequently, the visual system does not by itself allow a subject to maintain an upright posture. Index Terms- Feedback control, frequency characteristics, identification, posture, visual sensory feedback.
有或没有平衡问题的老年人对视觉流的姿势敏感性。
DOI：
10.1093/gerona/51a.2.m45
发表时间：
1996
期刊：
The journals of gerontology. Series A, Biological sciences and medical sciences
影响因子：
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作者：
Sundermier,L;Woollacott,MH;Jensen,JL;Moore,S
通讯作者：
Moore,S
影响因子：
2.5
作者：
HORAK, FB;NASHNER, LM
通讯作者：
NASHNER, LM