Brain Science App Reduced Cannabis Use and Improved Decision-Making in College Students

After four 20-minute NIPA sessions, 68 college students showed significant reductions in executive function deficits, stress, and anxiety. Decision-making improved: reduced delay discounting of large rewards and increased sensitivity to uncertainty. Participants reported lower intentions to use and lower actual use of nicotine and cannabis, and less binge drinking.

Pilot study with 68 undergraduates who had prior substance use. Pre-post assessment around four 20-minute NIPA app sessions combining metacognitive training, gamified neurocognitive tasks, and neuroscience psychoeducation delivered through cartoons, animations, and videos. Wilcoxon signed-rank and binomial tests analyzed changes.

Traditional substance prevention focuses on knowledge and motivation, but this app targets underlying cognitive processes like executive function and decision-making. The simultaneous improvement in cognition and reduction in substance use suggests that building cognitive skills may be more effective than information alone.

If cognitive training can reduce substance use, it offers a scalable, non-stigmatizing prevention approach. The app format makes it accessible and engaging for college students, and the neuroscience framing may be more appealing than traditional prevention messaging.

No control group. Pre-post design cannot establish causation. Small sample (N=68). Very short intervention (4 sessions). No follow-up to assess durability. Self-reported outcomes. Participants self-selected.