Neurocognitive moderation of associations between cannabis use and psychoneuroticism.

Background: Cannabis use has been associated with neurocognitive impairments and psychopathology. The strength of such associations does however appear to depend on many different factors, such as duration and intensity of use, but also differential susceptibility due to genetic make-up and environmental influences. The present study investigated whether specific cognitive weaknesses moderated associations between cannabis use and psychoneuroticism, which may be considered one of the "softer" expressions of an extended psychosis phenotype.

Cannabis use and vulnerability for psychosis in early adolescence--a TRAILS study.

Aims: To examine the direction of the longitudinal association between vulnerability for psychosis and cannabis use throughout adolescence.

Design: Cross-lagged path analysis was used to identify the temporal order of vulnerability for psychosis and cannabis use, while controlling for gender, family psychopathology, alcohol use and tobacco use.

Setting: A large prospective population study of Dutch adolescents [the TRacking Adolescents' Individual Lives Survey (TRAILS) study].

Motivational and cognitive inhibitory control in recreational cannabis users.

Substance use disorders have been associated with impaired decision making and increased impulsive behavior. Lack of inhibitory control may underlie such higher order cognitive difficulties and behavior problems. This study examined inhibitory control in 53 recreational cannabis users and 48 controls.

Social skills as precursors of cannabis use in young adolescents: a TRAILS study.

Social skills (cooperation, assertion, and self-control) were assessed by teachers for a longitudinal cohort of (pre)adolescents, with measurements at average ages 11.1 (baseline) and 16.3 years (follow-up).