Using daily life methods, the present study investigated the impact of Integrated Coping Awareness Therapy (I-CAT), which includes mindfulness and positive psychological interventions, versus treatment-as-usual (TAU) on improving daily affective well-being. Among I-CAT participants only, we also examined the time-varying effect of daily I-CAT skill practice on daily affective well-being. Data...
OBJECTIVE: Cannabis use has been examined as a predictor of psychosis in clinical high-risk (CHR) samples, but little is known about the impact of other substances on this relationship. METHOD: Substance use was assessed in a large sample of CHR participants (N = 370, mean age = 18.3) enrolled in the multisite North American Prodrome Longitudinal Study Phase 1 project. Three hundred and...
Abstract Objective Tobacco and cannabis are the most used substances among individuals at clinical high risk for psychosis (CHR-P), but it remains controversial whether substance use drives symptom exacerbation and psychosis transition, or vice versa. We investigated longitudinal dose-response relationships of tobacco and cannabis use with clinical presentation in a CHR-P population. Methods...