Abstract

In vitro studies indicate that rod photoreceptors of both mammals and lower vertebrates light-adapt, i.e., exhibit reduced incremental sensitivity in the presence of background illumination. Available data suggest that a reduced integration time for one or more steps of phototransduction may play a role in adaptation (e.g., Baylor & Hodgkin, 1974; Torre et al., 1986; Tamura et al., 1989; Kraft et al., 1993).

© 1995 Optical Society of America