Perceptual differences between hippies and college students.
D000293:Adolescent; D000328:Adult; D002140:California; D005260:Female; D006801:Humans; D007088:Illusions; D008238:Lysergic Acid Diethylamide; D008297:Male; D009039:Motion Perception; D010465:Perception; D010551:Personality; D011581:Psychological Tests; D012924:Social Conditions; D012925:Social Conformity; D013334:Students; D019966:Substance-Related Disorders
D008238:Lysergic Acid Diethylamide