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Using ecological momentary assessment to quantify Δ-9-tetrahydrocannabinol and cannabidiol use across different forms of cannabis: Feasibility in a sample of Canadian young adults reporting frequent cannabis use.
Addiction
January 2025
Department of Psychology, York University, Toronto, Canada.
Aims: To establish the feasibility of using ecological momentary assessment (EMA) to estimate total quantities of Δ-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) used across different forms of cannabis, and to assess the predictive validity of THC estimates for predicting acute cannabis-related consequences.
Design: 14-day EMA using a smartphone application to assess cannabis use in real time.
Setting: Canada.
The influence of age on brief motivational intervention for unhealthy alcohol use.
Drug Alcohol Depend Rep
March 2025
Department of Psychiatry - Addiction Medicine, Lausanne University Hospital and University of Lausanne, Lausanne 1011, Switzerland.
Introduction: The influence of age on brief motivational interventions (BMI) effects remains unknown. In the present study, we explored whether change in alcohol consumption after BMI differs across age groups and whether these differences are reflected in motivational interviewing (MI) counsellor skills.
Method: Secondary analysis of a randomized controlled trial among emergency room (ER) patients screened for unhealthy alcohol consumption.
Vulnerability to addictive behaviors: the Associational Memory-Appetitive Systems Relations Model.
World Psychiatry
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Departments of Population and Public Health Sciences, and Psychology, and School of Social Work, University of Southern California, Los Angeles, CA, USA.
Cocaine-Induced Remodeling of the Rat Brain Peptidome: Quantitative Mass Spectrometry Reveals Anatomically Specific Patterns of Cocaine-Regulated Peptide Changes.
ACS Chem Neurosci
January 2025
School of Pharmacy, University of Wisconsin─Madison, Madison, Wisconsin 53705, United States.
Addiction to psychostimulants, including cocaine, causes widespread morbidity and mortality and is a major threat to global public health. Currently, no pharmacotherapies can successfully treat psychostimulant addiction. The neuroactive effects of cocaine and other psychostimulants have been studied extensively with respect to their modulation of monoamine systems (particularly dopamine); effects on neuropeptide systems have received less attention.
View Article and Find Full Text PDFCannabis Use Cessation and the Risk of Psychotic Disorders: A Case-Control Analysis from the First Episode Case-Control EU-GEI WP2 Study: L'arrêt de l'utilisation du cannabis et le risque de troubles psychotiques: Une analyse cas-témoins tirée de l'étude cas-témoins EU-GEI WP2 centrée sur les premiers épisodes psychotiques.
Can J Psychiatry
January 2025
Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Objectives: To establish whether the risk of psychotic disorders in cannabis users changes with time following cannabis cessation using data from the European Network of National Networks studying Gene-Environment Interactions in Schizophrenia (EU-GEI) case-control study.
Methods: The EU-GEI case-control study collected data from first episode psychosis patients and population controls across sites in Europe and Brazil between May 2010 and April 2015. Adjusted logistic regressions were applied to examine whether the odd of psychosis case status changed: (1) with time following cannabis cessation and (2) across different cannabis use groups.
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