title: Motor components in the choice reaction time of mildly retarded adults.
abstract: The contributions of specific motor-coordination disabilities and general slowness of motor function to the choice reaction times (RTs) of retarded subjects were examined in two experiments. RTs for the same stimulus-response (S-R) pairs were markedly shorter when presented in 2-choice than in 8-choice RT situations. Furthermore, in an 8-choice task, large RT differences between retarded and nonretarded subjects decreased markedly when processes of stimulus discrimination and S-R translation were minimized by direct stimulation of the response mechanisms.
mesh_terms: D000293:Adolescent; D000328:Adult; D002755:Choice Behavior; D003657:Decision Making; D004193:Discrimination Learning; D006801:Humans; D008607:Intellectual Disability / Q000523:psychology*; D008297:Male; D009048:Motor Skills; D011596:Psychomotor Disorders / Q000523:psychology; D011930:Reaction Time; D014110:Touch