TIME VARYING CHARACTERISTICS OF HUMAN POSTURAL SWAY

描述：（改编自研究者摘要） 本研究旨在了解人体姿势系统及其 适应外界视觉干扰的能力。适应，习惯 健康人站立时姿势摇摆的饱和度特征 在不同的支持表面将被研究，因为将相同 患有损害平衡的疾病的患者的特征， 前庭缺陷和小脑缺陷。重点是 对视觉扰动的姿势反应的时变方面。 初步数据表明，适应扰动的能力可以 用于区分不同类别的主题。数据的主要工具 收集是一个中心的压力（COP）平台类型与移动的视觉 现场设备已连接。时频分析等数据处理方法 以允许计算适应（每刺激响应 在试验中下降），习惯化（对刺激的反应下降， 重复试验）和饱和度（对增加的响应的压缩 统计数据，具有较高的可信度。研究的一个目的是 改善个人的评估和康复， 紊乱

DESCRIPTION: (Adapted from the Investigator's Abstract) This study seeks to gain understanding of the human postural system and its ability to adapt to external visual perturbations. The adaptation, habituation and saturation characteristics of postural sway in healthy individuals standing on different support surfaces will be studied as will as the same characteristics in patients with diseases that impair balance such as vestibular deficits and cerebellar deficits. The focus will be on the time-varying aspects of the postural response to visual perturbations. Preliminary data indicate that the ability to adapt to perturbations can be used to distinguish between classes of subjects. The primary tool for data collection is a center of pressure (COP) platform type with a moving visual field device attached. Data processing methods such as time-frequency analysis are employed to allow the calculation of adaptation (per-stimulus response decline within a trial), habituation (a decrease in response to stimuli across repeated trials) and saturation (compression of the response to increasing stimulus) statistics with high confidence. An objective of the research is to improve the evaluation and rehabilitation of individuals with balance disorders.