Cleland B G, Lee B B, Vidyasagar T R
J Neurosci. 1983 Jan;3(1):108-16. doi: 10.1523/JNEUROSCI.03-01-00108.1983.
It is well recognized that in the visual cortex of the cat, some of the cells (hypercomplex) are sharply tuned for the length of a bar moving backwards and forwards across their receptive fields. Other cells (simple) exhibit no such tuning but appear to respond proportionately over a range of bar lengths. The tuning seen in hypercomplex cells is already observable to a lesser degree in retinal ganglion cells. Our experiments were carried out to determine the extent of this tuning in the lateral geniculate nucleus, which relays information from the retina to the cortex. Results show that geniculate cells have tuning properties intermediate between those of ganglion cells and hypercomplex cells. By adding together a linear array of geniculate cells, it is possible to model the characteristics of a simple cell and to demonstrate that while an elongated bar gives a minimal response in hypercomplex cells, it should have little effect on the response of simple cells.
人们普遍认识到，在猫的视觉皮层中，一些细胞（超复杂细胞）对在其感受野上来回移动的棒的长度具有敏锐的调谐。其他细胞（简单细胞）则没有这种调谐，但似乎在一系列棒的长度范围内按比例做出反应。超复杂细胞中看到的调谐在视网膜神经节细胞中已经在较小程度上可以观察到。我们进行实验以确定这种调谐在外侧膝状体核中的程度，外侧膝状体核将信息从视网膜传递到皮层。结果表明，膝状体细胞具有介于神经节细胞和超复杂细胞之间的调谐特性。通过将线性排列的膝状体细胞相加，可以模拟简单细胞的特征，并证明虽然细长的棒在超复杂细胞中产生最小反应，但它对简单细胞的反应应该影响很小。
