title: The orienting reflex in intellectually average and retarded children to a relevant and an irrelevant stimulus.
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D001811:Blood Volume Determination; D002648:Child; D003214:Conditioning, Classical; D005385:Fingers / Q000098:blood supply; D006185:Habituation, Psychophysiologic; D006801:Humans; D008607:Intellectual Disability; D007360:Intelligence; D008027:Light; D008297:Male; D009949:Orientation; D010775:Photic Stimulation; D013016:Sound