在手势执行过程中的视角改变了半球专业化
Ingo Helmich1, Sophie Mueller2, Robert Rein3
1Department of Exercise and Sport Studies, Smith College, Northampton, MA, USA.
Behavioural brain research
|December 6, 2024
概括
工具使用剧 (TUP) 和运动质量呈现 (MQP) 的手势共享大脑功能. 自我中心的TUP手势涉及左半球和右半球,而非中心的MQP手势主要涉及右半球.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 发动机控制器的控制器
背景情况:
- 左半球通常与手势中的自我中心运动视角有关.
- 异心手势,如运动质量呈现 (MQP),可能涉及右半球功能.
- 工具使用模 (TUP) 姿势被假设与MQP相比,依赖于明显的半球横向化.
研究的目的:
- 为了研究手势制作的半球专业化.
- 为了对比自我中心 (TUP) 与非中心 (MQP) 姿态的神经相关性.
- 为了测试TUP和MQP手势依赖于不同横向的大脑功能的假设.
主要方法:
- 功能性近红外光谱学 (fNIRS) 应用于24名右撇子的健康人群.
- fNIRS测量了两个半球中前后中心旋转的脑活动.
- 参与者执行了三种类型的手势:TUP,MQP和无意义的手势.
主要成果:
- 与无意义的手势相比,TUP手势显示左上边缘环和右前中心环中的氧化血红蛋白 (∆HbO2) 增加.
- 与无意义的手势相比,MQP手势在右前中心中表现出增加的∆HbO2.
- 在直接对比TUP和MQP手势时,没有观察到∆HbO2的显著差异.
结论:
- 工具使用剧 (TUP) 和运动质量呈现 (MQP) 的手势具有共同的运动认知功能.
- 手势制作受视角的影响:自我中心的TUP涉及双边激活,而非中心的MQP更多地依赖于右半球.
- 对于手势制作的半球侧面化取决于运动的自我中心或非中心性质.
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