Construction of complex receptive fields in cat primary visual cortex
Construction of complex receptive fields in cat primary visual cortex
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DOI：
10.1016/s0896-6273(01)00489-5
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发表时间：
2001-11-08
期刊：
影响因子：
16.2
通讯作者：
Alonso, JM
中科院分区：
文献类型：
--
作者：
Martinez, LM;Alonso, JM
在初级视觉皮层中，神经元根据其反应特性分为简单细胞和复杂细胞。尽管这两种细胞类型在视觉中的作用仍然未知，但一个有吸引力的假设是简单的细胞对于构建复杂的感受野是必要的。该分层模型提出了两个主要预测。首先，简单细胞应该单突触连接到复杂细胞。其次，当简单细胞失活时，复杂细胞应该变得沉默。我们最近为第一个预测提供了证据，在这里我们为第二个预测做同样的事情。总之，我们的结果表明，大多数 2+3 层复杂细胞的感受野是由需要简单细胞输入的机制生成的。
In primary visual cortex, neurons are classified into simple cells and complex cells based on their response properties. Although the role of these two cell types in vision is still unknown, an attractive hypothesis is that simple cells are necessary to construct complex receptive fields. This hierarchical model puts forward two main predictions. First, simple cells should connect monosynaptically to complex cells. Second, complex cells should become silent when simple cells are inactivated. We have recently provided evidence for the first prediction, and here we do the same for the second. In summary, our results suggest that the receptive fields of most layer 2+3 complex cells are generated by a mechanism that requires simple cell inputs.