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首页> 外文期刊>PLoS Biology >Feedback, both Fast and Slow: How the Retina Deals with Redundancy in Space and Time
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Feedback, both Fast and Slow: How the Retina Deals with Redundancy in Space and Time

机译：快速和缓慢的反馈：视网膜如何处理时空冗余

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摘要

By the time visual information leaves the retina for the brain, it has undergone several rounds of processing. Most prominently, that information has been filtered to amplify differences in contrast, between either two points in space or two points in time. The initial step in that amplification is carried out by horizontal cells, whose job is not only to receive signals from a group of adjacent photoreceptor cells (rods or cones) but also to send inhibitory feedback signals back to the photoreceptors, turning down the weakest outputs and allowing only the strongest to get through.
机译：到视觉信息离开视网膜进入大脑时，它已经经历了几轮处理。最突出的是，该信息已被过滤以放大两个空间点或两个时间点之间的对比度差异。放大的第一步是由水平细胞进行的，水平细胞不仅要从一组相邻的感光细胞（棒或视锥细胞）接收信号，还要将抑制性反馈信号发送回感光细胞，从而减弱最弱的输出并且只允许最强者通过。

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