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TL;DR: A 2026 medRxiv preprint linked greater attention-deficit/hyperactivity disorder (ADHD) symptom scores in college students to reduced stop-signal functional MRI (fMRI) activation in cannabinoid receptor 1 (CB1R)-rich brain regions, and that reduced activ…
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TL;DR: A 2026 study in Neuropsychopharmacology found that decision-making measures from a stop-signal task, especially evidence accumulation, predicted cigarette and cannabis use better than stop-signal reaction time (SSRT), a common estimate of response inhib…
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TL;DR: A 2026 randomized trial analysis in European Journal of Psychotraumatology found that COPE-A, an integrated exposure-based therapy for youth with posttraumatic stress disorder (PTSD) and substance use disorder (SUD), reduced PTSD symptoms more than supp…
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TL;DR: A 2026 systematic review and meta-analysis in Drug and Alcohol Review estimated high adolescent substance-use exposure in South Africa, with lifetime alcohol use at 35.09%, tobacco at 25.47%, and cannabis at 10.47% across community and school-based stud…
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