Jagadeesh B, Wheat H S, Ferster D
Department of Neurobiology and Physiology, Northwestern University, Evanston, IL 60208.
Science. 1993 Dec 17;262(5141):1901-4. doi: 10.1126/science.8266083.
Intracellular recordings from simple cells of the cat visual cortex were used to test linear models for the generation of selectivity for the direction of visual motion. Direction selectivity has been thought to arise in part from nonlinear processes, as suggested by previous experiments that were based on extracellular recordings of action potentials. In intracellular recordings, however, the fluctuations in membrane potential evoked by moving stimuli were accurately predicted by the linear summation of responses to stationary stimuli. Nonlinear mechanisms were not required.
利用猫视觉皮层简单细胞的细胞内记录来测试视觉运动方向选择性产生的线性模型。如先前基于动作电位细胞外记录的实验所表明的，方向选择性被认为部分源于非线性过程。然而，在细胞内记录中，移动刺激诱发的膜电位波动可通过对静止刺激反应的线性总和准确预测。不需要非线性机制。
