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Ayahuasca’s Antidepressant Effects Covary with Behavioral Activation as Well as Mindfulness

Maha N. Mian, Brianna R. Altman, Mitch Earleywine

Journal of Psychoactive Drugs September 30, 2019 DOI: 10.1080/02791072.2019.1674428 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational cohort Placebo-controlled Peer reviewed
Sample size 152
Population Individuals after an Ayahuasca experience
Intervention Ayahuasca
Topics Anxiety Ayahuasca Meditation
Keywords Behavioral activation Antidepressant Depression economics Hallucinogen Clinical psychology Behavioral inhibition Behavioral neuroscience Placebo Cognition
Citations 47
Key findings Behavioral activation was a stronger predictor of reduced depression than mindfulness after an Ayahuasca experience.

Abstract

Ayahuasca, a plant-based hallucinogen that serves as a spiritual medicine in South America, has improved depression in at least one placebo-controlled clinical trial. Case studies suggest that dramatic behavioral changes often follow the Ayahuasca ceremony, but most explanations of antidepressant effects focus on changes in mindfulness. This study investigated whether both mindfulness and behavioral activation might contribute to these anti-depressant effects. We surveyed individuals (N = 152) about their changes in depressive symptoms, behavioral activation, and mindfulness after an Ayahuasca experience. Mindfulness was strongly associated with reduced depression severity (r = - .670, p r = - .474, p p p < .05). Changes in behavioral activation likely serve as a mechanism underlying Ayahuasca's antidepressant effects. Future clinical trials could benefit from tracking behavioral activation.

Comparable studies

Other observational and cohort studies on ayahuasca for anxiety, most cited first.

Study Year Design Participants
Antidepressant effects of a single dose of ayahuasca in patients with recurrent depression: a preliminary report Patients with a depressive disorder 2015 Observational study
Ayahuasca’s ‘afterglow’: improved mindfulness and cognitive flexibility in ayahuasca drinkers Ayahuasca drinkers (both naïve and experienced) 2020 Observational study
A placebo-controlled study of the effects of ayahuasca, set and setting on mental health of participants in ayahuasca group retreats Experienced participants of ayahuasca retreats in the Netherlands, Spain, and Germany 2021 Naturalistic observational study n = 30
Persisting Effects of Ayahuasca on Empathy, Creative Thinking, Decentering, Personality, and Well-Being Volunteers attending ayahuasca ceremonies 2021 Naturalistic observational study n = 43
Ceremonial Ayahuasca in Amazonian Retreats—Mental Health and Epigenetic Outcomes From a Six-Month Naturalistic Study Self-selected participants in ayahuasca ceremonies at a retreat centre in the Peruvian... 2021 Prospective naturalistic study n = 63

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