Midbrain and motivated behavior.
D000374:Aggression; D000818:Animals; D001143:Arousal; D001522:Behavior, Animal; D001835:Body Weight; D003075:Coitus; D004326:Drinking; D004435:Eating; D004644:Emotions; D006801:Humans; D008297:Male; D008526:Medulla Oblongata / Q000502:physiology; D008636:Mesencephalon / Q000502:physiology*; D009042:Motivation; D009434:Neural Pathways / Q000502:physiology; D051381:Rats; D012154:Reticular Formation / Q000502:physiology; D012726:Sexual Behavior, Animal; D013238:Stereotaxic Techniques; D013681:Tegmentum Mesencephali / Q000502:physiology