TIME VARYING CHARACTERISTICS OF HUMAN POSTURAL SWAY

人体姿势摇摆的时变特征

• 批准号: 6379546
• 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/6379546
• 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《调查者摘要》) 这项研究试图了解人类的姿势系统及其 适应外部视觉干扰的能力。适应，习惯化 健康人站立姿势摆动的饱和特征 在不同的支撑面上将进行同样的研究 患有损害平衡的疾病的患者的特征 前庭缺陷和小脑缺陷。重点将放在 姿势对视觉干扰反应的时变特征。 初步数据表明，适应扰动的能力可以是 用来区分不同类别的科目。数据的主要工具 收集是一种压力中心(COP)平台类型，具有移动视觉 已连接现场设备。时频分析等数据处理方法 用来计算适应(按刺激反应 试验中的下降)、习惯化(对刺激的反应减少 重复试验)和饱和度(对增加的反应的压缩 刺激)统计数据信心十足。这项研究的目的之一是 完善对平衡个体的评估和康复 精神错乱。