The conduction velocity in retino geniculate afferent fibers in the rabbit

We have recorded X- and Y-like cells in the rabbit lateral geniculated nucleus (LGN) and found a small but statistically significant difference between the latencies of the two cell types to stimulation of the chiasm. The relative frequency of recordable Y-cells was equal in pigmented and in albino rabbits. No relative increase in the recording probability of Y-cells versus X-cells was found with increasing eccentricity of the receptive field (RF) locations with respect to the visual streak in either breed.