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Virtual Reality Experiments with Physiological Measures
Published on: August 29, 2018
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在虚拟现实中的Go-NoGo射击任务期间,心肺呼吸相互作用与认知负载的意外演变
Karuna P Sahoo1, Sawon Pratiher1, Sazedul Alam2
1Indian Institute of Technology, Department of Electrical Engineering, Kharagpur, 721302, West Bengal, India.
Computers in biology and medicine
|September 11, 2024
概括
来自虚拟现实任务的认知负载会改变心肺相互作用. 新的分析揭示了心率变化,血压和压力下呼吸动态的显著变化.
科学领域:
- 生理学 生理学 生理学
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
背景情况:
- 心血管和呼吸系统紧密联系在一起,由自主神经系统调节.
- 了解心肺呼吸系统 (CR) 相互作用对于评估对各种刺激的生理反应至关重要.
- 认知负载显著影响自主功能,需要详细分析CR动态.
研究的目的:
- 分析不同认知负载下CR相互作用的动态.
- 为了研究基于虚拟现实 (VR) 的Go-NoGo任务对心率变化 (RR间隔 - RRI),缩血压 (SBP) 和呼吸的影响.
- 将线性和非线性方法进行比较,以评估CR与认知负载的合变化.
主要方法:
- 使用第一阶差异化对RRI,SBP和呼吸信号进行静止分析.
- 应用皮尔森的相关性和相互信息来量化CR相互作用.
- 开环和闭环自行回归模型的估计,使用外源输入 (ARX) 来推导冲动响应 (IR).
- 开发新的参数从双指数曲线适配与共弦度调制用于IR分析.
主要成果:
- 认知负载减少了RRI-SBP和RRI-Respiration之间的线性和非线性相互作用.
- SBP-呼吸线性相关性保持不变,但随着认知负载的增加,相互信息增加.
- 从ARX模型衍生出的IR显示,在认知负载下,峰值幅度降低.
- 来自IR的新参数显示了认知负载的显著差异,特别是SBP-呼吸相互作用.
结论:
- 由VR任务引起的认知负载显著改变了CR交互.
- 非线性测量和新的IR衍生参数对认知压力下的CR动态变化敏感.
- 这些发现为认知负载的生理影响和监测和评估中的潜在应用提供了洞察力.
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