Blake R, Yu K, Lokey M, Norman H
Vanderbilt University, Department of Psychology, Nashville TN 37240, USA.
J Cogn Neurosci. 1998 Jan;10(1):46-60. doi: 10.1162/089892998563770.
In a series of experiments psychophysical techniques were used to study the relation between binocular rivalry and motion perception. An initial series of experiments confirmed that motion enhances the predominance of an eye during rivalry, although the direction of motion does not matter. The presence of an annulus of motion immediately surrounding one eye's rival target greatly enhances dominance of that target, but the influence of the annulus progressively decreases as the separation between disk and annulus increased. Opponent directions of motion in disk and annulus yield greater dominance than when dots in the disk and annulus moved in identical directions. In a second experiment that two eyes were adapted to orthogonal directions of motion, generating strong, distinctively different monocular motion aftereffects (MAEs). Even though the two eyes view physically identical random-motion displays following differential adaptation, binocular rivalry of the discrepant MAEs can occur. Finally, using a stimulus replacement technique to measure detectability of translational and rotational motion, it was found that both types of motion were readily detected during periods of dominance but went undetected during periods of suppression. Taken together, these results bear on the process responsible for rivalry and its neural locus relative to the analysis of different types of motion.
在一系列实验中，运用心理物理学技术研究双眼竞争与运动知觉之间的关系。最初的一系列实验证实，运动虽不影响方向，但会增强竞争过程中一只眼睛的优势地位。紧邻一只眼睛竞争目标的运动环带会极大地增强该目标的优势，但随着圆盘与环带之间距离的增加，环带的影响会逐渐减弱。圆盘和环带中相反方向的运动会比圆盘和环带中相同方向的点运动产生更大的优势。在第二个实验中，两只眼睛适应了正交的运动方向，产生了强烈且明显不同的单眼运动后效（MAE）。尽管在差异适应后两只眼睛看到的是物理上相同的随机运动显示，但仍会出现不一致的MAE的双眼竞争。最后，使用刺激替代技术测量平移和旋转运动的可检测性，发现这两种运动类型在优势期都很容易被检测到，但在抑制期则未被检测到。综合来看，这些结果与负责竞争的过程及其相对于不同类型运动分析的神经位点有关。
