Translations:J-RGC/20/en

JAM-B cells respond selectively to upward motion. To test the direction sensitivity of each sample J-RGC, Kim et al. moved a small spot through its receptive field center along eight straight-line trajectories of different orientation. They found that the response correlated strongly with the direction of the spot's motion. Furthermore, the direction eliciting the most response matched the general direction in which the asymmetric dendritic tree pointed away from the J-RGC soma. In contrast, it had previously been found that direction-selective ganglion cells generally lack a correlation between physiological sensitivity and structural asymmetry.