OPEN Foundation

Close this search box.

The Psychedelic Personality: Personality Structure and Associations in a Sample of Psychedelics Users

Share This Post


Research on the relationship between personality and psychedelics use has found evidence of a two-way influence where the personality structure predicts individual responses to psychedelics, and psychedelics use results in lasting changes to the individual’s personality structure. This study used brief personality measures in the form of the Ten-Item Personality Inventory (TIPI) and a simplified version of the Risk Taking Index (RTI) in order to measure personality traits in a sample of psychedelics users (N = 319). The participants in the study scored consistently higher than norms on each of the Big Five traits except Extraversion, and on every dimension of risk taking in the RTI. In multivariate logistic regression analyses, personality structure was associated with characteristics of the psychedelic experience that included the feelings of fear, love, and peace as well as states of perceived contact with non-ordinary beings and transcendent forces.

Johnstad P. G. (2021). The Psychedelic Personality: Personality Structure and Associations in a Sample of Psychedelics Users. Journal of psychoactive drugs, 53(2), 97–103.

Link to full text

OPEN Foundation

Join ICPR 2022 Online!

ICPR features world-leading experts from many academic disciplines, including psychiatry, psychology, neuroscience, anthropology, ethnobotany, and philosophy who come together to give a scientific conference for academics, therapists, researchers, clinicians, policymakers, and members of the public. Get your ICPR 2022 livestream ticket today and use the code OPENLIVE30 at checkout for a €30 discount.

Learn More


Subscribe to our new OPEN-Minded newsletter to stay in the loop, hear about our events, and become a part of a community dedicated to advancing psychedelics.

By clicking subscribe, I confirm to receive emails from the OPEN Foundation and agree with its privacy policy.

16 July - NDE's and Psychedelic Experiences: Commonalities & Insights