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双月协调的感知基础

F Mechsner¹, D Kerzel, G Knoblich

¹Max Planck Institute for Psychological Research, Department of Cognition and Action, Munich, Germany. mechsner@mpippf-muenchen.mpg.de

|November 2, 2001

概括

人类的行为显示出对空间对称性的偏见,而不是肌肉激活. 这表明,自愿运动是由感知目标组织的,运动活动灵活地适应以实现这些目标.

科学领域:

神经科学是一个神经科学.
发动机控制器的控制器
人类行动人类行动

背景情况:

定期的双手运动往往会表现出一种自发的倾向,即镜像对称.
发生非自愿的对称性滑落,但不是反过来,传统上归因于肌肉协同激活.
以前的解释将这种对称偏差与运动神经元结构联系起来.

研究的目的:

调查双手运动中对称偏差的潜在机制.
挑战这种现象对运动起源的传统观点.
探索感知因素在组织人类行为的作用.

主要方法:

双手指振荡和四个手指敲击任务被用作实验模型.
分析的重点是对称性偏差的性质,区分空间和肌肉起源.
采用双手循环模型和视觉反来评估运动复杂性和表现.

主要成果:

双手运动中的对称性偏差主要是对空间,感知对称性,独立于涉及的特定肌肉.
复杂的动作,即使是看似"不可能"的动作,也可以通过简单的视觉反来执行.
运动执行不需要专门的感知模式的"运动"表现.

结论:

在双人行动中的自发协调似乎是感知性的,而不是运动性的.
志愿运动是围绕感知目标的表现而组织的.
运动活动灵活调整以实现这些感知目标,无需复杂的内部模型翻译.

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