Ohashi N, Asai M, Nakagawa H, Mizukoshi K
Department of Otolaryngology, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan.
ORL J Otorhinolaryngol Relat Spec. 1990;52(4):226-31. doi: 10.1159/000276140.
We developed a system to feedback the center of foot pressure by vision using a microcomputer. The subjects were instructed to adjust the center of foot pressure (displayed on the computer display at real time) to the point of intersection of the two stable (horizontal and vertical) lines on the computer display. The peak of the power spectra of body sway shifted significantly to the higher frequency range in the Y component (the lateral direction) in the visual feedback condition. Thus, we conclude that the visual feedback of body sway depends mainly on the error signals between the fovea and the image in the lateral direction to stabilize body sway.
我们开发了一个利用微型计算机通过视觉反馈足底压力中心的系统。受试者被要求将足底压力中心（实时显示在计算机显示屏上）调整到计算机显示屏上两条稳定（水平和垂直）线的交点处。在视觉反馈条件下，身体摆动功率谱的峰值在Y分量（横向）上显著向高频范围移动。因此，我们得出结论，身体摆动的视觉反馈主要取决于中央凹与横向图像之间的误差信号，以稳定身体摆动。
