Increasing depth of binocular rivalry suppression along two visual pathways
Increasing depth of binocular rivalry suppression along two visual pathways
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DOI：
10.1016/s0042-6989(03)00314-6
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发表时间：
2003-09-01
期刊：
影响因子：
1.8
通讯作者：
Alais, D
中科院分区：
文献类型：
--
作者：
Nguyen, VA;Freeman, AW;Alais, D
双眼竞争是指当两只眼睛呈现不相容的刺激时发生的交替感知：一个单眼图像只被看到几秒钟，然后消失，因为另一个图像进入视野。看不见的刺激是物理存在的，但不能被感知，因为它所激发的感觉信号被抑制了。这种双眼竞争抑制的神经部位是一个持续争议的来源。我们对人类受试者进行了心理测试，使用的测试探针旨在选择性地激活不同处理阶段的视觉系统。结果，这适用于形式和运动的判断，表明抑制过程中的灵敏度损失增加的主题的任务变得更加复杂。我们的结论是，双眼竞争抑制存在于沿着两个视觉皮层通路的若干阶段，并且随着视觉信号沿着沿着这些通路进展，抑制加深。(C)2003 Elsevier Ltd.保留所有权利。
Binocular rivalry refers to the alternating perception that occurs when the two eyes are presented with incompatible stimuli: one monocular image is seen exclusively for several seconds before disappearing as the other image comes into view. The unseen stimulus is physically present but is not perceived because the sensory signals it elicits are suppressed. The neural site of this binocular rivalry suppression is a source of continuing controversy. We psychophysically tested human subjects, using test probes designed to selectively activate the visual system at a variety of processing stages. The results, which apply to both form and motion judgements, show that the sensitivity loss during suppression increases as the subject's task becomes more sophisticated. We conclude that binocular rivalry suppression is present at a number of stages along two visual cortical pathways, and that suppression deepens as the visual signal progresses along these pathways. (C) 2003 Elsevier Ltd. All rights reserved.