Nelson J I, Frost B J
Exp Brain Res. 1985;61(1):54-61. doi: 10.1007/BF00235620.
Most neurons in cat striate visual cortex show inhibitory effects when moving contours are presented beyond the limits of classic receptive field regions. Facilitatory effects are also present in about 40% of simple cells. Here, we report a highly specific form of this facilitation, mediated only by neurons possessing both an orientation tuning matched to the test unit, and a receptive field position aligned with its long axis. This finding illustrates one of the intracortical interconnection schemes hypothesized by Mitchison and Crick (1982). Periodic clustering in long, intrinsic axons may signify a neuron seeking specific functional interactions like these across columnar systems in both the spatial and orientation domains.
当移动的轮廓出现在猫纹状视觉皮层经典感受野区域的界限之外时，大多数神经元会表现出抑制作用。在大约40%的简单细胞中也存在易化作用。在此，我们报告了这种易化作用的一种高度特异性形式，其仅由同时具备与测试单元匹配的方向调谐以及与测试单元长轴对齐的感受野位置的神经元介导。这一发现阐明了米切森和克里克（1982年）所假设的一种皮质内互连模式。长的固有轴突中的周期性聚类可能意味着一个神经元在空间和方向域中寻求跨柱状系统的此类特定功能相互作用。
