Personality, not cognition, distinguishes chronic ayahuasca and cannabis users from non-users
European Neuropsychopharmacology February 12, 2026 José Carlos Bouso, Óscar Andión, Sabela Fondevila Estévez et al.
The increasing interest in the therapeutic potential of psychedelics and cannabis underscores the need to understand their long-term neuropsychological and personality effects. This cross-sectional study compared regular users of ayahuasca (n = 69), cannabis (n = 56), and non-substance users (n = 94) on a battery of neuropsychological tasks and psychological questionnaires. Participants were...