Redding G M, Wallace B
Department of Psychology, Illinois State University, Normal, IL 61761, USA.
J Mot Behav. 1988 Sep;20(3):242-54. doi: 10.1080/00222895.1988.10735444.
Aftereffect measures of visual shift and proprioceptive shift were obtained for prism exposure conditions in which, at the end of a sagittal pointing movement, most of the arm was visible (concurrent exposure) or only the first finger joint was visible (terminal exposure). Intermediate exposure conditions permitted view of the hand or the first two finger joints. Under the concurrent exposure condition, proprioceptive shift was greater than visual shift but, as view of the pointing hand decreased, the relative magnitude of the two components gradually reversed so that, under the terminal exposure condition, visual shift was greater than proprioceptive shift. These results are discussed in terms of a model of perceptual-motor organization (Redding, Clark, & Wallace, 1985) in which the direction of coordinative linkage between eye-head and hand-head systems determines the locus of discordance and adaptive recalibration.
在棱镜暴露条件下获得了视觉偏移和本体感觉偏移的后效应测量结果，其中，在矢状指向运动结束时，大部分手臂可见（同时暴露）或仅第一指关节可见（末端暴露）。中间暴露条件允许看到手或前两个指关节。在同时暴露条件下，本体感觉偏移大于视觉偏移，但随着指向手的可见度降低，两个成分的相对大小逐渐反转，因此，在末端暴露条件下，视觉偏移大于本体感觉偏移。这些结果根据感知运动组织模型（Redding、Clark和Wallace，1985）进行了讨论，在该模型中，眼-头和手-头系统之间协调联系的方向决定了不一致和适应性重新校准的位置。
