Multiunit activity of the cat lateral geniculate neurons evoked by moving light pattern of variable intensity

The activity of groups of 2-5 cells with overlapping receptive fields (RFs) was recorded by one single electrode from the lateral geniculate nucleus. The histograms of responses to a moving complex stripe- pattern were qualitatively compared with the stimulus intensity change measured within the center of the RFs. We suggest that the intensity of the stimulus is matched by the integrated activity of several functionally related units.