Gozli Davood G, Pratt Jay
Department of Psychology, University of Toronto, 100 St. George Street, Toronto, ON M5S 3G3, Canada.
Atten Percept Psychophys. 2011 Nov;73(8):2448-56. doi: 10.3758/s13414-011-0203-x.
The onset of new motion has been shown to be a very robust cause of attentional capture, generating a processing advantage for the location of motion onset regardless of the observer's concurrent goal. The present study, motivated by the common-coding account of action and perception, examined whether the effect of motion onset on visual attention can be modulated by the observer's mode of action. Specifically, the common-coding account predicts that preparing an action can render the features that are used in the action plan less available for visual processes. Consistent with this hypothesis, in Experiment 1 the magnitude of attentional capture caused by a single motion onset was reduced when this motion was similar to the observer's response (i.e., along the same axis). Similarly, in Experiment 2 the onset of a response-different motion gained a processing advantage over the response-similar motion onset when the two were presented simultaneously. Since both types of motion were present in every trial, the results of Experiment 2 suggest that response similarity affected visual-attentional processes rather than motor processes. Together, these results suggest that the processes of attentional prioritization caused by motion onset can be modulated by the observer's concurrent action.
新动作的起始已被证明是注意力捕获的一个非常有力的诱因，无论观察者当前的目标是什么，它都会为动作起始的位置产生一种加工优势。本研究受动作与感知的共同编码理论的启发，探讨了动作起始对视觉注意力的影响是否会受到观察者动作模式的调节。具体而言，共同编码理论预测，准备一个动作会使动作计划中所使用的特征较少地用于视觉加工过程。与这一假设一致的是，在实验1中，当单个动作起始与观察者的反应相似时（即沿着同一轴），由该动作起始引起的注意力捕获程度会降低。同样，在实验2中，当反应不同的动作起始和反应相似的动作起始同时呈现时，前者相对于后者获得了加工优势。由于每次试验中都会出现这两种类型的动作，实验2的结果表明，反应相似性影响的是视觉注意过程而非运动过程。总之，这些结果表明，由动作起始引起的注意力优先化过程会受到观察者当前动作的调节。
