The activity of pars compacta neurons of the monkey substantia nigra is depressed by apomorphine
- PMID: 6493628
- DOI: 10.1016/0304-3940(84)90456-7
The activity of pars compacta neurons of the monkey substantia nigra is depressed by apomorphine
Abstract
In the substantia nigra of anesthetized and awake monkeys, presumptive dopamine cells of the pars compacta were electrophysiologically discriminated against non-dopaminergic cells of the pars reticulata by their lower discharge rate (0.5-8 vs 20-130 imp./s), their longer impulse duration (means 2.05 vs 0.92 ms), and their exclusive depression following systemic injection of the dopamine agonist apomorphine (24 out of 30 compacta neurons at 0.05-0.1 mg/kg s.c.).
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