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The case of frontostriatal dysfunction in schizophrenia.
1Dept. of Experimental Psychology, University of Cambridge, United Kingdom.
Schizophrenia Bulletin
|January 1, 1990
Summary
This study proposes a frontostriatal hypothesis for schizophrenia, integrating diverse evidence to explain the disorder's complex symptoms and neurobiology. It highlights the role of corticostriatal loops in dopaminergic dysfunction and structural changes.
Area of Science:
- Neuroscience
- Psychiatry
- Cognitive Psychology
Background:
- Schizophrenia exhibits significant symptomatic heterogeneity.
- Existing research points to neurochemical and structural abnormalities in the brain.
Purpose of the Study:
- To advance a frontostriatal hypothesis for schizophrenia.
- To integrate diverse lines of evidence, including neurochemical, imaging, neuropsychological, and psychopharmacological data.
Main Methods:
- Review and synthesis of evidence from neurochemical pathology studies.
- Analysis of functional imaging, cognitive neuropsychology, and psychopharmacology research.
- Inclusion of factor analyses of schizophrenia symptoms.
Main Results:
- Recent characterization of anatomically segregated corticostriatal loops.
- Identification of potential substrates for understanding functional changes in schizophrenia.
Conclusions:
- The frontostriatal hypothesis offers a framework for understanding schizophrenia.
- Functional changes in striatal and cortical dopaminergic activity interact with structural pathology within corticostriatal loops.