middelen afhankelijkheid (cannabis) cannabis addiction/ cannabis dependance
Conditions
Interventions
None listed
Sponsors
Academisch Medisch Centrum
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: Male or Female, age 18-25 years, right handed;At-risk cannabis user group: 10-30 marijuana use episodes in the previous month and at least 240 marijuana use episodes in the past 2 years.;Control group 1: matched on gender and ethnicity to the cannabis user group with 1- 50 lifetime marijuana use episodes (Pope et al. 2001).;Control group 2: matched on gender and ethnicity to the cannabis user group with 0 lifetime marijuana use episodes (Pope et al. 2001).
Exclusion criteria
Exclusion criteria: Cannabis user group: seeking treatment or a history of treatment. Control group 1: cannabis use during the past year. (This will be verified by urinalysis.) Control group 2: cannabis use or ever used. The following exclusion criteria will be in effect for all groups: Score of more than 10 on the AUDIT screening questionnaire for alcohol related problems (Saunders et al. 1993). Smoking more than one pack of tobacco cigarettes per day. Current use of prescription or illicit psychoactive drugs other than marijuana. More than 100 lifetime uses of any non-cannabinoid class of drug of abuse (Kouri et al. 1999; Pope et al. 2001). Trying to stop alcohol or tobacco use. Unstable medical illness (e.g., hypertension, diabetes, myocardial infarction). Current Axis I psychiatric disorder.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Personality characteristics, behavioural scores, brainactivity, and brain connectivity. | — |
Countries
Netherlands
Outcome results
None listed