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感知到姿势不稳定开始的时间.

Robert E McIlroy1, Michael Barnett-Cowan1

  • 1Department of Kinesiology and Health Sciences, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.

Gait & posture
|July 21, 2023
PubMed
概括

姿势不稳定的感知并没有延迟,这挑战了先前的研究. 在时间顺序判断 (TOJ) 任务中的方法控制对于准确的平衡研究和防摔工作至关重要.

科学领域:

  • 人类平衡和姿势控制
  • 人类感官感知是感官感知.
  • 人类心理物理学 人类心理物理学

背景情况:

  • 之前使用时间顺序判断 (TOJ) 任务的研究表明,与听觉刺激相比,感知姿势不稳定的出现有显著的延迟.
  • 方法方面的问题,特别是不平衡的刺激发作异步 (SOA) 分布,存在于对姿势不稳定感知的先前研究中.

研究的目的:

  • 调查主观同时性点 (PSS) 是否在不平等和均等分布的SOA条件之间有所不同.
  • 为了确定与真实同时性相比,姿势扰乱开始的感知是否延迟.

主要方法:

  • 一个重复的措施设计与10名参与者使用一个TOJ任务.
  • 展示了两个SOA分布:分布1 (分布不均) 和分布2 (分布均).
  • 配对t测试和单样t测试用于分析PSS差异和延迟.

主要成果:

  • 分布1显示,姿势不稳定开始的感知延迟为20.34 ms.
  • 分布2导致听觉刺激的感知延迟3.52 ms.
  • 两种条件都没有表现出彼此或真实同时性 (0 ms) 的显著差异.

结论:

关键词:
布 布 布 的 布 布 的姿势干扰 姿势干扰可复制性 可复制性时间命令是时间命令.时间感知时间感知.

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  • 对姿势不稳定的感知并不是本质上缓慢的,这与之前的假设相反.
  • 控制方法参数,如SOA分布,对于精确的感官暗示检查至关重要.
  • 研究结果有助于更好地了解平衡控制,并可能为预防跌倒策略提供信息.