Shimono K, Tam W J, Ono H
Department of Marine Technology, Tokyo University of Marine Science and Technology, Ettchujima, Tokyo 135-8533, Japan.
Vision Res. 2007 Apr;47(8):1027-35. doi: 10.1016/j.visres.2007.01.012. Epub 2007 Mar 6.
A stationary monocular stimulus appears to move concomitantly with lateral head movements when it is embedded in a stereogram representing two front-facing rectangular areas, one above the other at two different distances. In Experiment 1, we found that the extent of perceived motion of the monocular stimulus covaried with the amplitude of head movement and the disparity between the two rectangular areas (composed of random dots). In Experiment 2, we found that the extent of perceived motion of the monocular stimulus was reduced compared to that in Experiment 1 when the rectangular areas were defined only by an outline rather than by random dots. These results are discussed using the hypothesis that a monocular stimulus takes on features of the binocular surface area in which it is embedded and is perceived as though it were treated as a binocular stimulus with regards to its visual direction and visual depth.
当一个静止的单眼刺激物嵌入到一个立体图中时，该立体图呈现出两个前后排列的矩形区域，一个在另一个上方，且处于两个不同的距离，此时单眼刺激物似乎会随着头部的横向移动而同步移动。在实验1中，我们发现单眼刺激物的感知运动程度与头部运动的幅度以及两个矩形区域（由随机点组成）之间的视差有关。在实验2中，我们发现当矩形区域仅由轮廓而非随机点定义时，单眼刺激物的感知运动程度相比于实验1有所降低。我们使用以下假设对这些结果进行了讨论：单眼刺激物具有其所嵌入的双眼表面区域的特征，并且在视觉方向和视觉深度方面，它被感知为好像被当作双眼刺激物来对待。
