Size matters: A study of binocular rivalry dynamics
Size matters: A study of binocular rivalry dynamics
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DOI：
10.1167/9.1.17
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发表时间：
2009-01-01
影响因子：
1.8
通讯作者：
Kang, Min-Suk
中科院分区：
文献类型：
--
作者：
Kang, Min-Suk
W.J.M.Levelt在几个形式命题中系统地研究了刺激强度对双眼竞争动力学的影响。他违反直觉的第二个命题指出，一只眼睛的刺激的支配持续时间并不取决于刺激的强度，而是取决于另一只眼睛看到的刺激的强度。一些研究报告了与这一命题一致的结果，但另一些研究发现违反了这一命题。在竞争跟踪期间，通过改变竞争刺激的大小和跟踪指令来研究双眼竞争的动力学，在竞争跟踪期间，两个竞争刺激的对比度是独立变化的。当这些刺激较大时，Levelt的第二个命题得到了验证，但当竞争刺激较小时，该命题就被违反了，这表明双眼竞争的动力学本质上是时空的。一个简单的能源模型可以解释这些发现，该模型考虑了相邻竞争领域之间的耦合。文中还讨论了取决于竞争刺激大小的其他动力学。
W.J.M. Levelt systematized the influence of stimulus strength on binocular rivalry dynamics in several formal propositions. His counterintuitive 2nd proposition states that mean dominance duration of one eye's stimulus depends not on the strength of that stimulus but, instead, on the strength of the stimulus viewed by the other eye. Some studies have reported results consistent with this proposition but others have found violations of the proposition. This paper examines the dynamics of binocular rivalry by changing the size of rival stimuli and the tracking instructions during rivalry tracking periods in which the contrasts of the two rival stimuli are varied independently. Levelt's 2nd proposition was validated when those stimuli were large, but it was violated when the rival stimuli were small, suggesting that the dynamics of binocular rivalry are spatiotemporal in nature. A simple energy model with coupling among neighboring areas of rivalry can account for these findings. Other dynamics depending on the size of rival stimuli are discussed.