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Related Experiment Video

Updated: Jul 27, 2025

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
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Evaluating preferences for online psychological interventions to decrease cannabis use in young adults with

Ovidiu Tatar1, Amal Abdel-Baki2, Alina Dyachenko3

  • 1Research Center, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada; Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada.

Psychiatry Research
|June 10, 2023
PubMed
Summary
This summary is machine-generated.

Technology-based interventions can improve treatment for cannabis use disorder (CUD) in first episode psychosis (FEP). Patients prefer moderate intensity, autonomy, weekly feedback, and smartphone apps with video and gamification.

Keywords:
App-based interventionBest-Worst ScalingCannabis use disorderDigital healthFirst episode psychosisMental healthMobile healthSmartphoneSurveyYoutheHealthmHealth

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Area of Science:

  • Psychiatry
  • Digital Health
  • Addiction Medicine

Background:

  • Innovative technology offers potential for improved access to interventions for cannabis use disorder (CUD) in individuals with first episode psychosis (FEP).
  • High patient engagement is crucial for the success of app-based interventions.
  • Understanding patient preferences is key to developing effective digital health solutions.

Purpose of the Study:

  • To evaluate preferences for online psychological intervention characteristics among individuals with FEP and CUD.
  • To identify preferred technology platforms, app functionalities, and intervention delivery methods.

Main Methods:

  • A qualitative study informed the development of an electronic survey for 104 individuals (18-35 years old) with FEP and CUD.
  • Best-Worst Scaling (BWS) and item ranking methodologies were employed to measure preferences.
  • Conditional logistic regression and Luce regression models were used for data analysis.

Main Results:

  • Patients showed high preference for moderate intervention intensity (e.g., 15-minute modules) and treatment autonomy.
  • Weekly feedback on cannabis use and the use of technology-based interventions were highly preferred.
  • Smartphone apps, video components, synchronous communication with clinicians, and gamification elements were favored.

Conclusions:

  • Findings informed the development of iCanChange (iCC), a smartphone-based intervention for CUD in FEP.
  • The iCC intervention incorporates patient-preferred features to enhance engagement and outcomes.
  • iCC is currently undergoing clinical testing to validate its efficacy.