Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
Psychol Res. 2010 Mar;74(2):152-71. doi: 10.1007/s00426-009-0226-2. Epub 2009 Feb 13.
Recent studies have reported repulsion effects between the perception of visual motion and the concurrent production of hand movements. Two models, based on the notions of common coding and internal forward modeling, have been proposed to account for these phenomena. They predict that the size of the effects in perception and action should be monotonically related and vary with the amount of similarity between what is produced and perceived. These predictions were tested in four experiments in which participants were asked to make hand movements in certain directions while simultaneously encoding the direction of an independent stimulus motion. As expected, perceived directions were repelled by produced directions, and produced directions were repelled by perceived directions. However, contrary to the models, the size of the effects in perception and action did not covary, nor did they depend (as predicted) on the amount of perception-action similarity. We propose that such interactions are mediated by the activation of categorical representations.
最近的研究报告表明，视觉运动感知与手部运动的同时产生之间存在排斥效应。有两个模型，基于共同编码和内部前向建模的概念，被提出用来解释这些现象。它们预测，感知和动作中的效应大小应该是单调相关的，并随所产生和感知的内容之间的相似性而变化。这些预测在四个实验中进行了测试，参与者被要求在特定方向上进行手部运动，同时对独立刺激运动的方向进行编码。正如预期的那样，感知方向被产生的方向排斥，而产生的方向也被感知的方向排斥。然而，与模型相反，感知和动作中的效应大小并不相关，也不依赖于感知-动作相似性的数量（如预测的那样）。我们提出，这种相互作用是由类别表示的激活介导的。
