In a recent paper, “Visual Stimulation Reverses the Directional Preference of Direction-Selective Retinal Ganglion Cells” (2012), the lab of Dr. Marla Feller demonstrated direction reversal of a subgroup of  Direction Selective Ganglion Cells in the mouse retina.  The finding is contrary to the predominant dogma that direction selectivity is endowed by circuity that is hard-wired.  […]