Activity of cells in area 17 of the cat in absence of input from layer a of lateral geniculate nucleus.
Activity of cells in area 17 of the cat in absence of input from layer a of lateral geniculate nucleus.
复制标题
在没有外侧膝状核 a 层输入的情况下，猫 17 区细胞的活动。
DOI：
10.1152/jn.1983.49.3.595
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发表时间：
1983
影响因子：
2.5
通讯作者：
Malpeli,JG
中科院分区：
文献类型：
--
作者：
Malpeli,JG
1.注射4 mM氯化钴用于阻断外侧膝状体核（LGN）A层中的突触传递，而不阻断去往或来自其他层的通道纤维。2.膝状体层A的选择性失活几乎取消了所有的视觉活动在皮质层4ab，4c和6。在这些条件下，第2层和第3层细胞的刺激诱发反应、取向选择性和方向选择性没有受到严重影响。在第5层中，块的影响更多变，特别复杂的细胞受影响最小，简单的细胞受影响最大。3.由于组织的复杂的感受野和维持正常的方向选择性在颗粒层生存的主要层间相互作用的破坏，看来，猫纹状皮质的功能架构并不依赖于列的完整性。4.这些结果支持的想法，每一层的LGN是一个功能单位与一个独特的模式访问的各个层次的视觉皮层。
1. Injections of 4 mM cobaltous chloride were used to block synaptic transmission in layer A of the lateral geniculate nucleus (LGN) without blocking fibers of passage going to or arising from other layers. 2. Selective inactivation of geniculate layer A virtually abolished all visual activity in cortical layers 4ab, 4c, and 6. Under these conditions, the stimulus-evoked response, orientation selectivity, and direction selectivity of cells in layers 2 and 3 were not seriously affected. In layer 5, the effects of the block were more variable, with special complex cells least affected and simple cells most affected. 3. Since the organization of complex receptive fields and the maintenance of normal orientation selectivity in supragranular layers survive disruption of major interlaminar interactions, it appears that much of the functional architecture of cat striate cortex does not depend on the integrity of the column. 4. These results support the idea that each layer of the LGN is a functional unit with a unique pattern of access to the various layers of visual cortex.