dopamine system

a richly defined and extensive neurochemical regulatory system in the mammalian brain. There are four identified dopamine subdivisions: tuberoinfundibular (hormonal regulation); nigrostriatal (motor function); mesolimbic (reinforcement of behavior); and mesocortical (higher order cognitive activities).

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

January 3rd 2025

ring chromosome 18

a congenital chromosomal disorder characterized by microcephaly, ear and eye abnormalities, and mild to severe cognitive impairment. The condition is not hereditary but due to breakage of the arms of chromosome 18, which fuse to form one or more rings of varying sizes.