Activation, control, and the spiral aftermovement.
D000293:Adolescent; D000328:Adult; D001007:Anxiety; D001143:Arousal; D005366:Figural Aftereffect; D006339:Heart Rate; D006801:Humans; D008297:Male; D010465:Perception; D010551:Personality; D011581:Psychological Tests; D011603:Psychophysiology