Neuronal Activity of Monkey Pedunculopontine Tegmental Nucleus Area II
A new posteroventral pallidotomy has been introduced for patients with Parkinson’s disease (Laitinen, 1992). By this pallidotomy, a muscle rigidity and akinesia can be effectively abolished. A gait disturbance and balance problems could also be improved. The effects of the new pallidotomy is assumed to be the results of the blockade of the increased inhibitory effect from internal segment of the globus pallidus on the motor thalamus, as well as on the brain stem target, that is the pedunculopontine tegmental nucleus (PPN)(Ohye, 1995).
KeywordsMuscle Activity Firing Rate Muscle Tone Squirrel Monkey Heavy Load
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