title: Paul MacLean and the triune brain.
mesh_terms: D000818:Animals; D001519:Behavior / Q000502:physiology*; D001522:Behavior, Animal / Q000502:physiology; D005075:Biological Evolution; D001921:Brain / Q000033:anatomy & histology / Q000502:physiology*; D002540:Cerebral Cortex / Q000502:physiology; D004644:Emotions / Q000502:physiology; D004827:Epilepsy / Q000503:physiopathology; D049673:History, 20th Century; D008032:Limbic System / Q000502:physiology*