Department of Psychology, University College London, United Kingdom.
J Exp Psychol Hum Percept Perform. 2010 Oct;36(5):1174-83. doi: 10.1037/a0019953.
The effector dependence of automatic imitation was investigated using a stimulus-response compatibility (SRC) procedure during which participants were required to make an open or closed response with their hand or their mouth. The correct response for each trial was indicated by a pair of letters in Experiments 1 and 2 and by a colored square in Experiment 3. Each of these imperative stimuli was accompanied by task-irrelevant action images depicting a hand or mouth opening or closing. In relation to the response, the irrelevant stimulus was movement compatible or movement incompatible, and effector compatible or effector incompatible. A movement compatibility effect was observed for both hand and mouth responses. These movement compatibility effects were present when the irrelevant stimulus was effector compatible and when it was effector incompatible, but were smaller when the irrelevant stimulus and response effectors were incompatible. Consistent with the associative sequence learning (ASL) model of imitation, these findings indicate that automatic imitation is partially effector dependent and therefore that the effector dependence of intentional imitation reflects, at least in part, the nature of the mechanisms that mediate visuomotor translation for imitation.
利用刺激-反应相容性（SRC）程序研究了自动模仿的效应器依赖性，在此过程中，参与者需要用手或嘴做出张开或闭合的反应。在实验 1 和 2 中，每个试验的正确反应由一对字母表示，在实验 3 中由一个彩色方块表示。这些强制性刺激都伴随着描述手或嘴张开或闭合的无关动作图像。相对于反应，无关刺激与运动相容或运动不相容，与效应器相容或效应器不相容。手和嘴的反应都出现了运动相容性效应。当无关刺激与效应器相容或不相容时，都会出现这种运动相容性效应，但当无关刺激和反应效应器不兼容时，这种效应会更小。与模仿的联想序列学习（ASL）模型一致，这些发现表明自动模仿部分依赖于效应器，因此，有意模仿的效应器依赖性至少部分反映了介导模仿的视动转换机制的性质。
