ISSN: 1935-1232 (P)

ISSN: 1941-2010 (E)

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Citations : 5129

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Schizophrenia and other Psychotic Disorders in DSM-5: Clinical Implications of Revisions from DSM-IV
Author(s): Rajiv Tandon

Whereas improving validity and reliability of psychiatric diagnoses were key objectives in the development of DSM-5, enhancing clinical utility was the primary goal. With reference to psychotic disorders, changes addressed limitations in DSM-IV while incorporating new information about the nature of these disorders generated over the past twenty years. With regard to schizophrenia, variation in distinct psychopathological dimensions has been found to better account for the heterogeneity of schizophrenia than traditional subtypes. Resulting changes in DSM-5 will likely include elimination of the classic subtypes of schizophrenia and addition of unique psychopathological dimensions, along with elimination of the special treatment of Schneiderian “first-rank symptoms.” In view of the poor reliability and limited validity of DSM-IV schizoaffective disorder, a clearer definition is provided in DSM-5. Considering the discrepant treatment of catatonia in DSM-IV, it is treated consistently across the DSM-5 manual. Minor changes are made in the definition of delusional disorder to reduce spurious comorbidity and unnecessary complexity. A new category of “attenuated psychosis syndrome” is included in the appendix as a condition for further study. In this article, major likely revisions in the DSM-5 (due to be published in May 2013) criteria for schizophrenia spectrum and other psychotic disorders are summarized and their implications for clinical practice are discussed.