Prefrontal cortical dopamine systems and the elaboration of functional corticostriatal circuits: implications for schizophrenia and Parkinson's disease - PubMed (original) (raw)

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Prefrontal cortical dopamine systems and the elaboration of functional corticostriatal circuits: implications for schizophrenia and Parkinson's disease

A Y Deutch. J Neural Transm Gen Sect. 1993.

Abstract

The dopaminergic innervation of the prefrontal cortex is able to transsynaptically regulate the activity of subcortical dopamine innervations. Disruption of the prefrontal cortical DA innervation results in the enhanced biochemical responsiveness of the dopamine innervation of the nucleus accumbens. We present recent data indicating that distinct prefrontal cortical dopamine innervations can be functionally dissociated on the basis of responsiveness to stress. The ventral striatal projection target (nucleus accumbens shell) of the prefrontal cortical region that is stress sensitive is also responsive to stress. In this manner interconnected cortico-striato-pallido-mesencephalic loops can be defined on the basis of the biochemical responsive of local dopamine systems to stress and on the basis of responsiveness to antipsychotic drugs. These data suggest the functional derangement of a distinct corticofugal loops in schizophrenia and in certain aspects of Parkinson's disease.

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