Monkey substantia nigra (pars reticulata) neuron discharges during operant feeding.
Unit activity in the substantia nigra pars reticulata was recorded during monkey bar-press feeding behavior. Activity of one-third of neurons was related to motor execution such as arm extension, flexion and bar-pressing, but not to motor preparation. Motor-related neurons were distributed mainly in the rostrolateral part of the nucleus. More than one-third responded during feeding and/or drinking acts and to intra- or perioral sensory stimuli. These ingestion-related neurons were distributed mainly in the caudomedial part of the nucleus.
D000818:Animals; D001931:Brain Mapping; D002421:Caudate Nucleus / Q000502:physiology; D003216:Conditioning, Operant / Q000502:physiology*; D004327:Drinking Behavior / Q000502:physiology; D005247:Feeding Behavior / Q000502:physiology*; D005502:Food; D005917:Globus Pallidus / Q000502:physiology; D000882:Haplorhini; D009055:Mouth / Q000294:innervation; D012677:Sensation / Q000502:physiology; D013378:Substantia Nigra / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology