Binocular summation for reflexive eye movements.

Binocular summation for reflexive eye movements.
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DOI:
10.1167/18.4.7
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发表时间:
2018-04-01
期刊:
影响因子:
1.8
通讯作者:
Cumming BG
Cumming BG
中科院分区:
医学4区
文献类型:
--
作者:
Quaia C;Optican LM;Cumming BG

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心理物理学研究和我们自己的主观经验表明,在自然观看条件下(即,在中等到高对比度下),单眼和双眼观看的场景看起来非常相似,除了由立体视觉提供的改进的深度感知。这种现象通常被描述为缺乏双眼总和。我们在这里表明,有一个例外,这条规则:眼睛以下的眼球运动引起的突然运动的大刺激,我们记录从三个人类受试者,是大得多,当两只眼睛看到移动的刺激,比只有一只眼睛。我们进一步发现,这种双眼优势是两个单眼图像之间的眼间相关性的函数:当它们相同时,它是最大的,当两只眼睛呈现不同的图像时,它会减少。这只有在视觉跟随的神经元对双眼视差敏感时才有可能。
Psychophysical studies and our own subjective experience suggest that, in natural viewing conditions (i.e., at medium to high contrasts), monocularly and binocularly viewed scenes appear very similar, with the exception of the improved depth perception provided by stereopsis. This phenomenon is usually described as a lack of binocular summation. We show here that there is an exception to this rule: Ocular following eye movements induced by the sudden motion of a large stimulus, which we recorded from three human subjects, are much larger when both eyes see the moving stimulus, than when only one eye does. We further discovered that this binocular advantage is a function of the interocular correlation between the two monocular images: It is maximal when they are identical, and reduced when the two eyes are presented with different images. This is possible only if the neurons that underlie ocular following are sensitive to binocular disparity.
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