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.