Implicit and explicit affective associations towards cannabis use in patients with recent-onset schizophrenia and healthy controls

Psychological Medicine
N DekkerL de Haan

Abstract

Cannabis use is common in patients with recent-onset schizophrenia and this is associated with poor disease outcome. More insight in the cognitive-motivational processes related to cannabis use in schizophrenia may inform treatment strategies. The present study is the first known to compare implicit and explicit cannabis associations in individuals with and without psychotic disorder. Participants consisted of 70 patients with recent-onset psychotic disorder and 61 healthy controls with various levels of cannabis use. Three Single-Category Implicit Association Tests (SC-IAT) were used to assess 'relaxed', 'active' and 'negative' implicit associations towards cannabis use. Explicit expectancies of cannabis use were assessed with a questionnaire using the same words as the SC-IAT. There were no differences in implicit associations between patients and controls; however, patients scored significantly higher on explicit negative affect expectancies than controls. Both groups demonstrated strong negative implicit associations towards cannabis use. Explicit relaxed expectancies were the strongest predictors of cannabis use and craving. There was a trend for implicit active associations to predict craving. The findings indicate that p...Continue Reading

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Citations

Nov 18, 2015·Psychiatry Research·Emilie SchmitsEtienne Quertemont
Jan 13, 2015·Journal of Behavior Therapy and Experimental Psychiatry·Jianyong ChenMowei Shen
Mar 29, 2012·Psychological Medicine·N DekkerUNKNOWN GROUP Investigators
Jan 1, 2017·Addiction Research & Theory·Alan K Davis
Jun 20, 2020·Schizophrenia Research·Clément DondéFrédéric Haesebaert

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