Christiansen Jens H, Christensen Jeppe, Grünbaum Thor, Kyllingsbæk Søren
Department of Psychology, University of Copenhagen, Copenhagen, Denmark.
Department of Media, Communication, and Cognition, University of Copenhagen, Copenhagen, Denmark.
PLoS One. 2014 May 2;9(5):e94744. doi: 10.1371/journal.pone.0094744. eCollection 2014.
Spatial features of an object can be specified using two different response types: either by use of symbols or motorically by directly acting upon the object. Is this response dichotomy reflected in a dual representation of the visual world: one for perception and one for action? Previously, symbolic and motoric responses, specifying location, has been shown to rely on a common representation. What about more elaborate features such as length and orientation? Here we show that when motoric and symbolic responses are made within the same trial, the probability of making the same symbolic and motoric response is well above chance for both length and orientation. This suggests that motoric and symbolic responses to length and orientation are driven by a common representation. We also show that, for both response types, the spatial features of an object are processed independently. This finding of matching object-processing characteristics is also in agreement with the idea of a common representation driving both response types.
要么使用符号，要么通过直接作用于物体以运动方式来指定。这种反应二分法是否反映在视觉世界的双重表征中：一种用于感知，一种用于行动？此前，已表明指定位置的符号和运动反应依赖于共同的表征。那么像长度和方向这样更精细的特征呢？在这里我们表明，当在同一试验中做出运动和符号反应时，对于长度和方向而言，做出相同符号和运动反应的概率远高于随机概率。这表明对长度和方向的运动和符号反应是由共同的表征驱动的。我们还表明，对于这两种反应类型，物体的空间特征都是独立处理的。这种匹配的物体处理特征的发现也与驱动这两种反应类型的共同表征的观点一致。
