PS263 Chapter Notes - Chapter 7: Bereitschaftspotential, Frontal Lobe, Putamen
Document Summary
Contains more neurons than the rest of the brain combined and a huge number of sunapses. Damage = impairment at all athletic activities except ones that don"t require aim or timing, does not impair continuous motor activity. Masaeo ito proposed the key role of cerebellum is to establish new motor programs that enable one to execute a sequence of actions as a whole. Cerebellum receives input from spinal cord and each sensory system through cranial nerve nuclei and. Info eventually reaches cerebellar cortex; surface of the cerebellum. Purkinje cells are flat and in sequential planes, parallel to each other. Parallel fibres are axons parallel to one another and perpendicular to planes of purkinje cells. Action potentials in parallel fibres excite one purkinje cell after another, each purkinje cell then transmits inhibitory message to cells in nuclei of cerebellum and vestibular nuclei in brainstem, in turn send info to midbrain and thalamus.
