title: The formal similarity between the theories of McDougall, Miller, Marsten, and Cannon.
mesh_terms: D001519:Behavior; D003216:Conditioning, Operant; D004644:Emotions / Q000502:physiology; D005239:Fear; D006801:Humans; D009042:Motivation; D011582:Psychological Theory; D013788:Thalamus / Q000502:physiology