title: Operant control of precentral neurons: comparison of fast and slow pyramidal tract neurons.
mesh_terms: D000818:Animals; D003216:Conditioning, Operant / Q000502:physiology*; D005071:Evoked Potentials; D008253:Macaca mulatta; D008297:Male; D008526:Medulla Oblongata / Q000502:physiology*; D011712:Pyramidal Tracts / Q000502:physiology*