Redding G M, Wallace B
Department of Psychology, Illinois State University, Normal 61790-4620, USA.
J Exp Psychol Hum Percept Perform. 1996 Apr;22(2):379-94. doi: 10.1037//0096-1523.22.2.379.
When starting limb and target locations were simultaneously visible in a visuomotor task, performance during prism exposure was nearly perfect, but aftereffects were absent. When starting limb location was not visible, accurate exposure performance was slow to develop, but aftereffects were substantial. Adaptive spatial alignment of sensorimotor spaces and strategic perceptual-motor control to coordinate sensorimotor systems are distinct processes. However, realignment is dependent on whether the exposure task evokes control strategies that enable detection of misalignment. If the task can be performed solely by coding the visible difference between limb and target locations, misalignment detection is disabled. If movement is initiated by target location and then the limb is controlled by the visible difference between target and limb, the discordance between initialized and terminal locations enables misalignment detection and realignment.
在视动任务中，当起始肢体位置和目标位置同时可见时，棱镜暴露期间的表现近乎完美，但不存在后效。当起始肢体位置不可见时，准确的暴露表现发展缓慢，但后效显著。感觉运动空间的适应性空间对齐以及协调感觉运动系统的策略性感知运动控制是不同的过程。然而，重新对齐取决于暴露任务是否能引发能够检测到不对齐的控制策略。如果该任务仅通过编码肢体和目标位置之间的可见差异就能完成，那么不对齐检测就会被禁用。如果运动由目标位置启动，然后肢体由目标与肢体之间的可见差异控制，那么初始位置和最终位置之间的不一致就能够实现不对齐检测和重新对齐。
