Drug and Alcohol Review
May 21, 2012
Janine V. Olthuis, Christine Darredeau, Sean P. Barrett
79 citations
Abstract Introduction and Aims. Simultaneous polysubstance use (SPU) is a common phenomenon, yet little is known about its role in substance use initiation. Design and Methods. In the present study, 226 cannabis users completed structured interviews about their substance use history. For each substance ever used, participants provided details of their age of first use, their use in the...
Human Psychopharmacology Clinical and Experimental
June 1, 2006
Sean P. Barrett, Christine Darredeau, Robert O. Pihl
276 citations
Abstract Simultaneous polysubstance use (SPU) is a common phenomenon, yet little is known about how various substances are used with one another. In the present study 149 drug‐using university students completed structured interviews about their use of various substances. For each substance ever used, participants provided details about the type, order and amount of all substances...
The Canadian Journal of Psychiatry
August 1, 2002
Samantha R. Gross, Sean P. Barrett, John S. Shestowsky et al.
97 citations
Objective: This study investigates the drug consumption patterns of a sample of rave attendees in the city of Montreal, Quebec, and seeks to identify the prevalence of 3,4-methylendioxymethamphetamine (MDMA) and other drug use in this population. Method: We administered a self-report questionnaire to 210 respondents. For various licit and illicit substances, participants reported their age of...
Human Psychopharmacology Clinical and Experimental
2000
Sean P. Barrett, Jennifer Archambault, Marla Engelberg et al.
11 citations
This study investigated possible interactions between alcohol and hallucinogens in 22 lysergic acid diethylamide (LSD) and/or psilocybin users through retrospective structured interviews. Of those who had used LSD with alcohol, 86;7 per cent reported a complete blockade of subjective alcohol effects, while the remaining cases reported a diminished response. In addition, 60 per cent of...