Color component analysis of horizontal cells in the carp retina

摘要

References(26) Color coding mechanisms were studied by recording horizontal cell responses of the carp retina. Responses to light stimuli modulated by a white noise signal were computer-analyzed to obtain the impules responses of four types of horizontal cells. The latencies of the S-potentials were classified in three discrete groups; (1) the hyperpolarizing responses of the L cell and those of the R/G, Y/B and R/Y/B cells to shorter wavelengths had a latency of about 30 msec, (2) the depolarizing responses of the three chromaticity type cells had a longer latency of about 50 msec and (3) the hyperpolarizing response of the R/Y/B cell to red stimulus had the longest latency of about 70 msec. A model of interactions between cones and horizontal cells is proposed to explain the results.