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Research Article

Are Cannabis Expectancies Related to Subjective Drug Experiences and Schizotypy?

Emma Barkus1*, Tahlia Muddle1, John Stirling2 and Shôn Lewis3

1School of Psychology, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia

2Department of Psychology, Manchester Metropolitan University, Elizabeth Gaskell Campus, UK

3Community-Based Medicine, University of Manchester University Place, UK

Corresponding Author:
Emma Barkus
School of Psychology, University of Wollongong
Northfields Avenue, Wollongong, NSW 2522, Australia
Tel: +61(0)242218134
E-mail: ebarkus@uow.edu.au

Received date: September 01, 2015; Accepted date: November 23, 2015; Published date: November 30, 2015

Citation: Barkus E, Muddle T, Stirling J, Lewis S (2015) Are Cannabis Expectancies Related to Subjective Drug Experiences and Schizotypy? J Addict Res Ther 6:249. doi:10.4172/2155-6105.1000249

Copyright: © 2015 Barkus E, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Objective: There is an established literature on cannabis expectancies and how these relate to patterns of cannabis use and clinical outcomes. However increasingly we are becoming interested in how cannabis expectancies shape the subjective experiences people have during drug use, and vice versa. Here we present data reporting how cannabis expectancies relate to subjective experiences after cannabis. Additionally we will determine whether an index of psychosis proneness (schizotypy) is related to cannabis expectancies.
Method:
A sample of recreational cannabis users (n=137) completed the brief Schizotypal Personality Questionnaire, the Cannabis Experiences Questionnaire and the Marijuana Effects Expectancy Questionnaire.
Results: Cannabis expectancies correlated with the subjective experiences reported in the immediate high from cannabis. However, only Cognitive and Behavioural Impairment expectancies were correlated with after effects from cannabis. There were no significant correlations between schizotypy and cannabis expectancies.
Conclusion: Cannabis expectancies are related to the immediate experiences subjectively felt after smoking cannabis. Further research is necessary to determine which clinically significant personality traits shape cannabis expectancies.

Keywords

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