Cat area 17. I. Pattern of thalamic control of cortical layers.
Cat area 17. I. Pattern of thalamic control of cortical layers.
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猫区 17。 I. 丘脑控制皮质层的模式。
DOI：
10.1152/jn.1986.56.4.1062
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发表时间：
1986
影响因子：
2.5
通讯作者：
Weyand,TG
中科院分区：
文献类型：
--
作者：
Malpeli,JG;Lee,C;Schwark,HD;Weyand,TG
可逆失活的猫外侧膝状体和内侧层间核的各个层被用来调查必要和足够的输入，以维持视觉驱动的活动和感受野特性的区域17。取向选择性和方向选择性都不依赖于任何单个膝状体层。我们确定了两组皮质层的基础上，通过对侧眼提供视觉驱动的丘脑输入的模式。一组由第4层和第6层组成，膝状体层A作为其唯一必要和充分的输入。另一个由颗粒上层组成，整合了至少两个足够的丘脑输入，其中一个是A层。在这两组层中独立地产生几个主要的感受野特性。
Reversible inactivation of individual layers of the cat lateral geniculate and medial interlaminar nuclei was used to investigate the necessary and sufficient inputs for maintaining visually driven activity and receptive field properties in area 17. Neither orientation selectivity nor direction selectivity depends on any individual geniculate layer. We identified two groups of cortical layers on the basis of the pattern of thalamic inputs providing visual driving through the contralateral eye. One group, consisting of layers 4 and 6, has geniculate layer A as its only necessary and sufficient input. The other, consisting of supragranular layers, integrates at least two sufficient thalamic inputs, one of which is layer A. Several major receptive field properties are independently generated in these two groups of layers.