Suppressed patterns alter vision during binocular rivalry
Suppressed patterns alter vision during binocular rivalry
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DOI：
10.1016/j.cub.2005.10.066
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发表时间：
2005-12-06
期刊：
影响因子：
9.2
通讯作者：
Clifford, CWG
中科院分区：
文献类型：
--
作者：
Pearson, J;Clifford, CWG
当不一致的模式呈现给视网膜的相应区域时，就会发生双眼竞争，导致模式之间的意识波动[1]。刺激的一个属性可以竞争，而另一个属性可以在眼睛之间联合收割机[2-5]，但通常假设主要特征被真实地感知。在这里，我们表明情况不一定如此，被抑制的视觉特征可以改变主导感知。定向光栅的皮层表示可以相互作用，即使当它们中的一个被感知抑制时，使得感知到的主导光栅的取向根据被抑制光栅的取向而系统地偏置。抑制诱导模式具有与可见诱导模式相同的质量效果，但抑制将有效对比度降低约6倍。一个简单的神经模型可以量化并帮助解释这些错觉。这些结果表明，双眼竞争抑制操作在视觉层次结构中的多个网站，而不是截断处理在一个单一的网站，并抑制视觉信息可以实时改变主导的视觉分级的方式。
Binocular rivalry occurs when incongruent patterns are presented to corresponding regions of the retinas, leading to fluctuations of awareness between the patterns [1]. One attribute of a stimulus may rival whereas another may combine between the eyes [2-5], but it is typically assumed that the dominant features are perceived veridically. Here, we show this is not necessarily the case and that a suppressed visual feature can alter dominant perception. The cortical representations of oriented gratings can interact even when one of them is perceptually suppressed, such that the perceived orientation of the dominant grating is systematically biased depending on the orientation of the suppressed grating. A suppressed inducing pattern has the same qualitative effect as a visible one, but suppression reduces effective contrast by a factor of around six. A simple neural model quantifies and helps explain these illusions. These results demonstrate that binocular rivalry suppression operates in a graded fashion across multiple sites in the visual hierarchy rather than truncating processing at a single site and that suppressed visual information can alter dominant vision in real-time.