title: Pole reversals and hypothalamic self-stimulation: ascending spread of rewarding excitation.
mesh_terms: D000818:Animals; D003216:Conditioning, Operant; D004558:Electric Stimulation; D004567:Electrodes, Implanted; D007031:Hypothalamus / Q000502:physiology*; D008297:Male; D009431:Neural Conduction; D009474:Neurons / Q000502:physiology; D051381:Rats; D012201:Reward; D012653:Self Stimulation; D013238:Stereotaxic Techniques