Bairstow P J, Laszlo J I
J Exp Psychol Hum Percept Perform. 1980 Feb;6(1):1-12. doi: 10.1037//0096-1523.6.1.1.
Electrophysiological experiments have shown that during voluntary movement, the activity of kinesthetic receptors relevant to actively contracting muscles is modified. Furthermore, efferent motor commands interact with the central transmission and processing of kinesthetic sensory input. This article addresses itself to the question of whether the efferent motor commands of voluntary movement influence the perception and processing of kinesthetic spatial information. In two experiments, subjects moved around unfamiliar and unseen criterion stencil patterns with their right hands. In the first experiment subjects were required to concurrently track the constrained movements with their left hands. In the second experiment, following movement around a criterion pattern, the subjects had to recall it with their right hands. Tracking and recall movements in the two experiments showed a systematic spatial bias in the direction in which the right-hand constrained movements were commanded. It is argued that when a limb movement is contrained, the interaction between the efferent command pattern and the returning kinesthetic sensory input results in its position being perceived with a constant error in the direction in which the movement was commanded.
电生理实验表明，在自主运动过程中，与主动收缩肌肉相关的动觉感受器的活动会发生改变。此外，传出运动指令与动觉感觉输入的中枢传递和处理相互作用。本文探讨了自主运动的传出运动指令是否会影响动觉空间信息的感知和处理这一问题。在两个实验中，受试者用右手围绕不熟悉且看不见的标准模板图案移动。在第一个实验中，要求受试者用左手同时跟踪受限运动。在第二个实验中，在围绕标准图案移动之后，受试者要用右手回忆该图案。两个实验中的跟踪和回忆运动在右手受限运动的指令方向上显示出系统性的空间偏差。有人认为，当肢体运动受到约束时，传出指令模式与返回的动觉感觉输入之间的相互作用会导致其位置在运动指令方向上被感知为存在恒定误差。
