p285fig07.03 Persistence decreases with flash illuminance and duration due to the way in which habituative transmitters regulate the strength of the rebound in response to offset of a stimulating input, and how this rebound inhibits previously activated bipole cells.
|| Persistence data and simulations (Francis, Grossberg, Mingolia 1994 Vision Research, 34, 1089-1104). Persistence decreases with flash illuminance and duration. Horizontal input excites a horizontal bipole cell, which supports persistence. Offset of the horizontal input causes a rebound of activity in the vertical pathway, which inhibits the horizontal bipole cell, thereby terminating persistence.