Bourdin C, Gauthier G, Blouin J, Vercher J L
UMR Mouvement et Perception, Faculté des Sciences du Sport, CNRS-Université de la Méditerranée, 163, avenue de Luminy, CP 910, 13288, Marseille, France.
Neurosci Lett. 2001 Mar 23;301(1):25-8. doi: 10.1016/s0304-3940(01)01584-1.
A classical visuo-manual adaptation protocol carried out on a rotating platform was used to test the ability of subjects to adapt to centrifugal and Coriolis forces when visual feedback of the arm is manipulated. Three main results emerge: (a) an early modification of the initial trajectory of the movements takes place even without visual feedback of the arm; (b) despite the change in the initial trajectory, the new external force decreases the accuracy of the pointing movements when vision is precluded; (c) a visual adaptive phase allows complete adaptation of the pointing movements performed in a modified gravitoinertial field. Therefore vision would be essential for subjects to completely adapt to centrifugal and Coriolis forces. However, other sensory signals (i.e. vestibular and proprioceptive) may constitute the basis for early but partial correction of the pointing movements.
在旋转平台上进行的经典视觉-手动适应实验方案,用于测试当手臂的视觉反馈被操控时,受试者适应离心力和科里奥利力的能力。出现了三个主要结果:(a) 即使没有手臂的视觉反馈,运动的初始轨迹也会发生早期改变;(b) 尽管初始轨迹发生了变化,但当视觉被排除时,新的外力会降低指向运动的准确性;(c) 视觉适应阶段允许在改变的重力惯性场中进行的指向运动完全适应。因此,视觉对于受试者完全适应离心力和科里奥利力至关重要。然而,其他感觉信号(即前庭和本体感觉)可能构成指向运动早期但部分校正的基础。