The Association of Classic Serotonergic Psychedelic Use and Intention of Future Use with Nature Relatedness.

This study sought to investigate the effects of different substances on nature relatedness (NR) in the general population. An online cross-sectional survey done in Brazil investigated use of ayahuasca/DMT, mushrooms, LSD, MDMA/ecstasy, cocaine, cannabis, and alcohol. NR was assessed using the short-form version of the nature related scale (NR-6). One-way analysis of variance (ANOVA) was used to assess group differences between substance naïve-individuals, past users, and current users of each substance. Regression models were used including all the substances and subsequently, sociodemographic variables. ANOVAs with substances which showed significantly higher NR-6 scores in the regression model were used in order to assess the effect of intention of future use on NR. ANOVAs indicated higher NR in users of classic serotonergic psychedelics (ayahuasca/DMT, mushrooms, LSD), cannabis, and MDMA/ecstasy. Regression models showed that current use of ayahuasca/DMT and mushrooms, and past use of LSD had a positive association with NR. When sociodemographic variables were added, only ayahuasca/DMT past and current use were positively associated with NR. Intention of future use was only significantly associated with NR in individuals who reported intention of future use of mushrooms.