双眼竞争背后的皮质反应层级
Hierarchy of cortical responses underlying binocular rivalry.
作者信息
Lee Sang-Hun, Blake Randolph, Heeger David J
机构信息
Department of Psychology, Seoul National University, Shillim, Gwanak, Seoul 151-746, South Korea.
出版信息
Nat Neurosci. 2007 Aug;10(8):1048-54. doi: 10.1038/nn1939. Epub 2007 Jul 15.
Abstract
During binocular rivalry, physical stimulation is dissociated from conscious visual awareness. Human brain imaging reveals a tight linkage between the neural events in human primary visual cortex (V1) and the dynamics of perceptual waves during transitions in dominance during binocular rivalry. Here, we report results from experiments in which observers' attention was diverted from the rival stimuli, implying that: competition between two rival stimuli involves neural circuits in V1, and attention is crucial for the consequences of this neural competition to advance to higher visual areas and promote perceptual waves.
摘要
在双眼竞争期间，物理刺激与有意识的视觉觉知相分离。人类脑成像显示，在双眼竞争优势转换期间，人类初级视觉皮层（V1）中的神经活动与感知波的动态变化之间存在紧密联系。在此，我们报告了一些实验结果，在这些实验中观察者的注意力从竞争刺激上转移开，这意味着：两个竞争刺激之间的竞争涉及V1中的神经回路，并且注意力对于这种神经竞争的结果推进到更高视觉区域并促进感知波至关重要。
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