long-wavelength pigment

the photopigment, present in one of the three populations of retinal cones, that has maximum sensitivity to a light wavelength of 558 nm. The absence of the gene for the long-wavelength pigment causes protanopia (red color blindness). See also medium-wavelength pigment; short-wavelength pigment.

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

February 22nd 2025

association psychology

association psychology

a psychological approach based on the premise that learning and knowledge are derived from the formation of connections (associations) between ideas or representations of stimuli and responses. Association psychology developed from British empiricist and associationist philosophy (see associationism).