Wexler M, Klam F
Laboratoire de Physiologie de la Perception et de l'Action, Collège de France, Paris.
J Exp Psychol Hum Percept Perform. 2001 Feb;27(1):48-64.
The prediction of future positions of moving objects occurs in cases of actively produced and passively observed movement. Additionally, the moving object may or may not be tracked with the eyes. The authors studied the difference between active and passive movement prediction by asking observers to estimate displacements of an occluded moving target, where the movement was driven by the observer's manual action or was passively observed. In the absence of eye tracking, they found that in the active condition, estimates are more anticipatory than in the passive conditions. Decreasing the congruence between motor action and visual feedback diminished but did not eliminate the anticipatory effect of action. When the target was tracked with the eyes, the effect of manual action disappeared. Results indicate distinct contributions of hand and eye movement signals to the prediction of trajectories of moving objects.
对移动物体未来位置的预测出现在主动产生和被动观察运动的情况下。此外，移动物体可能会也可能不会被眼睛跟踪。作者通过要求观察者估计一个被遮挡的移动目标的位移来研究主动和被动运动预测之间的差异，其中运动由观察者的手动操作驱动或被被动观察。在没有眼动追踪的情况下，他们发现，在主动条件下，估计比被动条件下更具前瞻性。降低运动动作与视觉反馈之间的一致性会减弱但不会消除动作的前瞻性效应。当用眼睛跟踪目标时，手动动作的效应消失了。结果表明手和眼动信号对移动物体轨迹预测有不同的贡献。
