Genetic and Environmental Risk Factors for Cannabis Use: Preliminary Results for the Role of Parental Care Perception.

Background: Vulnerability to cannabis use (CU) initiation and problematic use have been shown to be affected by both genetic and environmental factors, with still inconclusive and uncertain evidence.

Objective: Aim of the present study was to investigate the possible interplay between gene polymorphisms and psychosocial conditions in CU susceptibility.

Methods: Ninety-two cannabis users and ninety-three controls have been included in the study.

The Metacognitions about Gambling Questionnaire: Development and psychometric properties.

Recent research has suggested that metacognitions may play a role across the spectrum of addictive behaviours. The goal of our studies was to develop the first self-report scale of metacognitions about gambling. We conducted three studies with one community (n = 165) and two clinical (n = 110; n = 87) samples to test the structure and psychometric properties of the Metacognitions about Gambling Questionnaire and examined its capacity to prospectively predict severity of gambling.