We are studying the phenomenon of direction selectivity to light stimuli in the retina by means of computational models of retinal cell networks.
Detection of motion direction in the visual system of rodents is observed at processing stages as early as the retinal circuitry. Starburst amacrine cells (SAC), which are components of this circuit, appear to give rise to direction selectivity (DS), …
Detection of motion and motion direction in the visual mammalian system is observed at processing stages as early as the retinal circuitry (Barlow & Levick 1965). Direction-selective ganglion cells (DSGC) in the retina exhibit higher firing activity in response to visual stimuli moving along a preferred direction, and little to none activity for stimuli moving in the opposite direction (Schachter et al.