TIME VARYING CHARACTERISTICS OF HUMAN POSTURAL SWAY

人体姿势摇摆的时变特征

• 批准号: 6092928
• 负责人: PATRICK J LOUGHLIN
• 金额: $ 14.78万
• 依托单位: UNIVERSITY OF PITTSBURGH AT PITTSBURGH
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-04-01 至 2003-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6092928
• 关键词: balance; behavioral /social science research tag; behavioral habituation /sensitization; bioengineering /biomedical engineering; cerebellar disorders; clinical research; human subject; labyrinth disorder; posture; psychological adaptation; psychomotor reaction time; psychomotor tracking; stimulus /response; visual fields; visual stimulus

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.

描述：（改编自研究者的摘要） 本研究旨在了解人类姿势系统及其 适应外部视觉干扰的能力。适应、习惯 健康个体站立姿势摇摆的饱和度特征 将研究不同支撑表面上的情况 患有损害平衡疾病的患者的特征，例如 前庭缺陷和小脑缺陷。重点将放在 对视觉扰动的姿势反应随时间变化的方面。 初步数据表明，适应扰动的能力可以 用于区分学科类别。数据的主要工具 该系列是具有移动视觉效果的压力中心 (COP) 平台类型 连接现场设备。时频分析等数据处理方法 用于允许计算适应（每个刺激响应 试验中下降），习惯化（对刺激的反应减少 重复试验）和饱和度（压缩响应增加 刺激）高置信度的统计数据。该研究的一个目标是 改善具有平衡能力的个体的评估和康复 失调。