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Typologies of positive psychotic symptoms in methamphetamine dependence

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Authors
Bousman, C.
McKetin, Rebecca
Burns, R.
Woods, S.
Morgan, E.
Atkinson, J.
Everall, I.
Grant, I.
Date
2015
Type
Journal Article

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Bousman, C. and McKetin, R. and Burns, R. and Woods, S. and Morgan, E. and Atkinson, J. and Everall, I. et al. 2015. Typologies of positive psychotic symptoms in methamphetamine dependence. American Journal on Addictions. 24 (2): pp. 94-97.
Source Title
American Journal on Addictions
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National Drug Research Institute (NDRI)
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Abstract

© 2015 American Academy of Addiction Psychiatry. Background and Objectives Understanding methamphetamine associated psychotic (MAP) symptom typologies could aid in identifying individuals at risk of progressing to schizophrenia and guide early intervention. Methods Latent class analysis (LCA) of psychotic symptoms collected from 40 (n = 40) methamphetamine dependent individuals with a history of psychotic symptoms but no history of a primary psychotic disorder. Results Three typologies were identified. In one, persecutory delusions dominated (Type 1), in another persecutory delusions were accompanied by hallucinations (Type 2), and in the third a high frequency of all the assessed hallucinatory and delusional symptoms was observed (Type 3). Discussion and Conclusion MAP is a heterogeneous syndrome with positive symptom typologies. Scientific Significance This study represents the first attempt at identifying typologies of MAP and highlights the potential utility of LCA in future large-scale studies. (Am J Addict 2015;24:94-97)