Directionally selective retinal ganglion cells suppress luminance responses during natural viewing.

Directionally selective retinal ganglion cells suppress luminance responses during natural viewing.
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DOI:
10.1038/srep35708
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发表时间:
2016-10-19
期刊:
影响因子:
4.6
通讯作者:
Fried SI
Fried SI
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Im M;Fried SI

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视网膜的开-关方向选择性细胞优先响应在优选方向上的运动,但在实验室条件下,它们也对静止刺激的亮度变化敏感。如果这些神经元的响应包含关于方向和亮度的信息,则下游神经元面临着提取运动分量的挑战,在某些观看条件下可能难以进行计算。在这里,我们表明,在自然观看过程中,对亮度的反应被抑制,留下一个相对纯净的运动信号被传输到大脑。
The ON-OFF directionally selective cells of the retina respond preferentially to movement in a preferred direction, but under laboratory conditions they are also sensitive to changes in the luminance of the stationary stimulus. If the response of these neurons contains information about both direction and luminance downstream neurons are faced with the challenge of extracting the motion component, a computation that may be difficult under certain viewing conditions. Here, we show that during natural viewing the response to luminance is suppressed, leaving a relatively pure motion signal that gets transmitted to the brain.
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