Abstract
The effect of chronic administration of spiroperidol, a dopaminergic antagonist, on self-stimulation of the prefrontal cortex was investigated. When spiroperidol was administered either before or after daily self-stimulation tests for 9 days, self-stimulation rates were significantly elevated for several weeks following withdrawal of the drug. Self-stimulation of the nucleus accumbens, supracallosal bundle, and other forebrain sites was not altered, suggesting that the increased self-stimulation of the prefrontal cortex was not due to increased motor activity. Self-stimulation of the prefrontal cortex was also facilitated by chronic administration of d-amphetamine whereas self-stimulation of the supracallosal bundle was suppressed and self-stimulation of the nucleus accumbens was unchanged. The results suggest that dopamine modulates self-stimulation of the prefrontal cortex. Additionally, the effects of chronic spiroperidol on self-stimulation of this structure may model the therapeutic effects of neuroleptics in humans.
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Robertson, A., Mogenson, G.J. Facilitation of self-stimulation of the prefrontal cortex in rats following chronic administration of spiroperidol or amphetamine. Psychopharmacology 65, 149–154 (1979). https://doi.org/10.1007/BF00433041
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DOI: https://doi.org/10.1007/BF00433041