One motor cortex, two different views.
Georgopoulos
A P
AP
Ashe
J
J
D000818:Animals; D001696:Biomechanical Phenomena; D006225:Hand / Q000502:physiology*; D006801:Humans; D008959:Models, Neurological; D009044:Motor Cortex / Q000166:cytology / Q000502:physiology*; D009068:Movement / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D009474:Neurons / Q000166:cytology / Q000502:physiology