Perception revisited.
D000818:Animals; D003216:Conditioning, Operant; D006801:Humans; D007088:Illusions; D007100:Imitative Behavior; D008722:Methods; D010465:Perception; D011582:Psychological Theory; D011589:Psychology, Experimental; D012677:Sensation; D013561:Symbolism; D014705:Verbal Behavior