Avatar Intervention for Cannabis Use Disorder in Individuals with Severe Mental Disorders: A Pilot Study

Author:

Giguère Sabrina12,Potvin Stéphane12ORCID,Beaudoin Mélissa123ORCID,Dellazizzo Laura12ORCID,Giguère Charles-Édouard2ORCID,Furtos Alexandra4,Gilbert Karine4,Phraxayavong Kingsada25ORCID,Dumais Alexandre1256ORCID

Affiliation:

1. Department of Psychiatry and Addictology, University of Montreal, Montreal, QC H3T 1J4, Canada

2. Research Center of the University Institute in Mental Health of Montreal, Montreal, QC H1N 3V2, Canada

3. Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3G 2M1, Canada

4. Department of Chemistry, University of Montreal, Montreal, QC H2V 0B3, Canada

5. Services et Recherches Psychiatriques AD, Montreal, QC H1N 3V2, Canada

6. Institut National de Psychiatrie Légale Philippe-Pinel, Montreal, QC H1C 1H1, Canada

Abstract

Cannabis use disorder (CUD) is a complex issue, even more so when it is comorbid with a severe mental disorder (SMD). Available interventions are at best slightly effective, and their effects are not maintained over time. Therefore, the integration of virtual reality (VR) may increase efficacy; however, it has not yet been investigated in the treatment of CUD. A novel approach, avatar intervention for CUD, uses existing therapeutic techniques from other recommended therapies (e.g., cognitive behavioral methods, motivational interviewing) and allows participants to practice them in real-time. During immersive sessions, participants are invited to interact with an avatar representing a significant person related to their drug use. This pilot clinical trial aimed to evaluate the short-term efficacity of avatar intervention for CUD on 19 participants with a dual diagnosis of SMD and CUD. Results showed a significant moderate reduction in the quantity of cannabis use (Cohen’s d = 0.611, p = 0.004), which was confirmed via urinary quantification of cannabis use. Overall, this unique intervention shows promising results. Longer-term results, as well as comparison with classical interventions in a larger sample, are warranted through a future single-blind randomized controlled trial.

Funder

IRSC Catayseur

Services et recherches psychiatriques AD

Fondation Lévesque

Publisher

MDPI AG

Subject

Medicine (miscellaneous)

Reference100 articles.

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