Conditioned response Learning, Psychology of 8 Psychology, Comparative 5 Memory 3 Behavior modification 2 Behaviorism (Psychology) 2 Learning in animals 2 Addresses, essays, lectures 1 Animal intelligence 1 Animals, Habits and behavior of 1 Aversive stimuli 1 Battle casualties 1 Brain 1 Brain stimulation 1 Collected works 1 Combat 1 Homicide 1 Inhibition 1 Paired-association learning 1 Psychobiology 1 Psychological aspects 1 Psychology 1 Psychology, Experimental 1 Psychology, Military 1 Reward (Psychology) 1 Violent deaths 1