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Clinical Synthesis
Published Online: 6 November 2020

What a Clinician Should Know About the Neurobiology of Schizophrenia: A Historical Perspective to Current Understanding

Abstract

The brain is no doubt the “organ” of psychiatry; yet, over the years, few evidence-based classifications of psychiatric disorders have been based on brain mechanisms. The National Institute of Mental Health notably proposed one such system, known as Research Domain Criteria, although it has not yet influenced any changes in the DSM. Of all the major psychiatric disorders, the brain has been studied most extensively in schizophrenia, with its speculative pathology first documented by Emil Kraepelin as early as the beginning of the 20th century. Subsequently, the revolution in technology over the past 50 years has changed how investigators are able to view the brain before death without performing biopsies. Schizophrenia is thus found to have both structural and functional widespread brain anomalies that likely lead to its clinical deterioration. At the onset of illness, acquiring an MRI scan could be part of the routine evaluation to determine how progressive the disease has so far been. However, this practice is not yet recognized by the American Psychiatric Association in any of its guidelines on the treatment of schizophrenia.

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History

Published in print: Fall 2020
Published online: 6 November 2020

Keywords

  1. MRI
  2. f-MRI
  3. post-mortem
  4. Kraepelin
  5. neurodevelopmental
  6. neuroprogressive

Authors

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Lynn E. DeLisi, M.D. [email protected]
Department of Psychiatry, Harvard Medical School, Boston, and Cambridge Health Alliance, Cambridge Hospital, Cambridge, Massachusetts.

Notes

Send correspondence to Dr. DeLisi ([email protected]).

Competing Interests

The author reports no financial relationships with commercial interests.

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