VISUAL ACTIVITY IN MACAQUE AREA V4 DEPENDS ON AREA 17 INPUT
VISUAL ACTIVITY IN MACAQUE AREA V4 DEPENDS ON AREA 17 INPUT
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DOI：
10.1097/00001756-199102000-00004
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发表时间：
1991-02-01
期刊：
影响因子：
1.7
通讯作者：
BULLIER, J
中科院分区：
文献类型：
--
作者：
GIRARD, P;SALIN, PA;BULLIER, J
已知猕猴外侧膝状体核的某些直接投射终止于V4区。视网膜信息也可以绕过17区，通过上级丘和枕的中继到达V4。这就提出了在没有来自区域17的输入的情况下区域V4是否在视觉上响应的问题。我们测试了这种可能性，在V4区记录，同时通过冷却使17区的一个区域失活。这导致几乎所有神经元的视觉反应完全消失，这些神经元的感受野包括在由区域17中的失活区编码的视野区域中。相比之下，感受野在这个区域之外的神经元仍然保持视觉反应。
IT is known that some direct projections from the lateral geniculate nucleus terminate in area V4 of the macaque monkey. Retinal information can also bypass area 17 and reach V4 through relays in the superior colliculus and pulvinar. This raises the question whether area V4 is visually responsive in the absence of input from area 17. We tested this possibility by recording in area V4 while inactivating a region of area 17 by cooling. This led to a complete abolition of the visual responses of practically all the neurons whose receptive fields were included in the visual field region coded by the inactivated zone in area 17. In contrast, neurons whose receptive fields were outside this region remained visually responsive.