探索内部前模型:行动效应预测和感觉运动处理中的注意力
Anthony W Harrison1, Gethin Hughes2, Gabriella Rudman1
1School of Psychology, UNSW Sydney, Mathews Building, Library Walk, Kensington NSW 2052, Australia.
Cerebral cortex (New York, N.Y. : 1991)
|June 8, 2023
概括
动作效应预测会影响运动准备,但不会影响自我产生的声音的感觉衰减. 注意力机制,而不是动作效应偶然性,似乎在刺激驱动的运动中抑制了听觉N1反应.
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:
- 动作效应预测将动作与感官结果联系起来,影响运动和感官衰减.
- 感官减弱会减少对自我产生刺激的反应,但其通过动作效应预测的调制仍在争论中.
- 现有的研究往往侧重于听觉N1,对其对动作效应预测的敏感性有矛盾的结果.
研究的目的:
- 调查行动效应偶然性如何影响视觉指导 (刺激驱动) 与非指导 (意志) 运动中的事件相关潜力.
- 澄清动作效应预测在感觉衰减中的作用,特别是关于听觉N1组件.
- 探索其他神经生理机制,如注意力抑制,潜在的感官衰减.
主要方法:
- 在64名参与者中记录了与事件相关的潜力 (ERP),他们进行了视觉指导和未指导的运动.
- 操纵的动作效应突发事件,以评估其对运动准备和感官处理的影响.
- 分析了N1振幅和其他电生理学标志物,包括腰尾活动.
主要成果:
- 复制了通过刺激驱动运动产生的音调的减少N1振幅的发现.
- 动作效应偶然性影响了运动准备,但没有显著影响N1幅度.
- 确定了与N1减小和注意力抑制相关的横向的围-尾活动.
结论:
- 动作效应偶然性在感觉衰减期间不会直接调节听觉N1振幅.
- 注意力机制,而不是动作效应偶然性,可能是刺激驱动的行为中抑制神经生理学反应对自我生成的声音的基础.
- 这些发现为感觉运动协调和感觉衰减的神经生理学的基础提供了新的见解.
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