Shevell Steven K, St Clair Rebecca, Hong Sang Wook
Department of Psychology, University of Chicago, Chicago, Illinois 60637, USA.
Vis Neurosci. 2008 May-Jun;25(3):355-60. doi: 10.1017/S0952523808080085. Epub 2008 Mar 6.
Under dichoptic viewing conditions, rivalrous gratings that differ in both color and form can give the percept of the color from one eye in part of the form in the other eye. This study examined the afterimage following such misbinding of color to form. The first experiment established that afterimages of the misbound percept were seen. Two possible mechanisms for the misbound afterimage are (1) persisting retinal representations that are rivalrous and subsequently resolved to give misbinding, as during rivalrous viewing, and (2) a persisting response from a central neural representation of the misbound percept with the form from one eye and color from the other eye. The results support afterimage formation from a central representation of the misbound percept, not from resolution of rivalrous monocular representations.
在双眼分视条件下，颜色和形状均不同的竞争光栅会使一只眼睛看到的颜色部分地与另一只眼睛看到的形状相结合。本研究考察了颜色与形状的这种错误结合之后的后像。第一个实验证实，能看到错误结合知觉的后像。错误结合后像的两种可能机制为：（1）视网膜表象持续存在，相互竞争，随后像竞争观看时那样，产生错误结合；（2）错误结合知觉的中枢神经表象持续产生反应，其形状来自一只眼睛，颜色来自另一只眼睛。结果支持后像是由错误结合知觉的中枢表象形成的，而非来自竞争的单眼表象的分解。
