Journal
COGNITIVE AND BEHAVIORAL NEUROLOGY
Volume 21, Issue 2, Pages 98-103Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/WNN.0b013e31816bdf90
Keywords
methamphetamine-induced psychotic disorder; neurocognition; psychosis; schizophrenia
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Objective: This exploratory study compared the neurocognitive performances of individuals with methamphetamine-induced psychotic disorder (MA psychosis) and paranoid schizophrenia. Background: MA psychosis presents very similarly to paranoid schizophrenia and the relationship between the 2 disorders is not well-understood. Neurocognitive functioning is one potential factor for comparison, as deficits are documented in both schizophrenia and methamphetamine dependence. Method: Participants were selected through chart review. Neurocognitive test scores for participants with paranoid schizophrenia (n = 20) and MA psychosis (n = 19) were obtained from hospital records and compared. Results: Results of multivariate analysis of variance found no significant differences between the groups in any neurocognitive domain. Conclusions: These preliminary findings suggest that similarities between the disorders may extend to neurocognition. Low power and sampling limitations may contribute to the null findings.
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