Psychology 191 Personality 51 Psychophysiology 44 Cognition 37 Child psychology 36 Psychoanalysis 36 Animal intelligence 35 more ... Cognition in children 34 History 28 Research 28 Rats 27 Psychology, Comparative 26 Philosophy 25 Methodology 22 Intellect 20 Learning, Psychology of 20 Thought and thinking 19 Behaviorism (Psychology) 18 Human behavior 17 Psychology, Experimental 17 Psycholinguistics 16 Chimpanzees 15 Conditioned response 15 Psychometrics 15 Psychology, Applied 14 Animal behavior 13 Ability 12 Brain 12 Motivation (Psychology) 12 Perception 12 less ...