Find over 25,000 psychological definitions


visual cycle

the biophysical and biochemical sequence of events that includes the release of all-trans retinal from rhodopsin during light stimulation, followed by its conversion to 11-cis retinal in the retinal pigment epithelium, and then the return of the 11-cis retinal to the photoreceptor for the reconstitution of rhodopsin.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

May 8th 2024

ontogeny

ontogeny

n. the biological origin and development of an individual organism from fertilization of the egg cell until death. Also called ontogenesis. Compare phylogeny. See also recapitulation theory. —ontogenetic adj.