Trigeminal substrates of intracranial self-stimulation in the brainstem.
Intracranial self-stimulation was elicited by electrodes located in the trigeminal motor nucleus of the rat. Rebound jaw movements were also elicited at postiive self-stimulation placements, but control experiments revealed that the lever pressing was not a motor artifact. It is suggested the modulation of trigeminal motoneurons may serve as an important reinforcement mechanism in the brainstem.
D000818:Animals; D001522:Behavior, Animal / Q000502:physiology; D001931:Brain Mapping; D007568:Jaw / Q000502:physiology; D008297:Male; D009046:Motor Neurons / Q000502:physiology; D009068:Movement; D009434:Neural Pathways / Q000502:physiology; D011149:Pons / Q000502:physiology*; D051381:Rats; D012054:Reinforcement, Psychology; D012653:Self Stimulation / Q000502:physiology*; D014276:Trigeminal Nerve / Q000502:physiology*