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Effects of 3,4-methylenedioxymethamphetamine on socioemotional feelings, authenticity, and autobiographical disclosure in healthy volunteers in a controlled setting.

Matthew J. Baggott, Jeremy Coyle, Jennifer D. Siegrist, Kathleen J Garrison, Gantt P. Galloway, John Mendelson

Journal of Psychopharmacology April 2016 DOI: 10.1177/0269881115626348 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Within-subjects double-blind placebo-controlled study Peer reviewed
Sample size 12
Population Adults receiving MDMA in a controlled setting (participants in a small within-subjects study)
Intervention 3
Dose 1.5 mg/kg oral MDMA
Topics Anxiety MDMA
Keywords 3,4-methylenedioxymethamphetamine Authenticity Emotion Entactogen Interpersonal Social
Key points MDMA produced mixed effects: it increased self-reported anxiety and had both sedative- and stimulant-like effects, yet it also increased feelings of authenticity, decreased social anxiety about negative evaluation, and made participants more comfortable describing emotional memories. The authors characterize this as a prosocial syndrome facilitating emotional disclosure and suggest MDMA may represent a novel pharmacological class.

Abstract

The drug 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy", "molly") is a widely used illicit drug and experimental adjunct to psychotherapy. MDMA has unusual, poorly understood socioemotional effects, including feelings of interpersonal closeness and sociability. To better understand these effects, we conducted a small (n=12) within-subjects double-blind placebo controlled study of the effects of 1.5 mg/kg oral MDMA on social emotions and autobiographical disclosure in a controlled setting. MDMA displayed both sedative- and stimulant-like effects, including increased self-report anxiety. At the same time, MDMA positively altered evaluation of the self (i.e. increasing feelings of authenticity) while decreasing concerns about negative evaluation by others (i.e. decreasing social anxiety). Consistent with these feelings, MDMA increased how comfortable participants felt describing emotional memories. Overall, MDMA produced a prosocial syndrome that seemed to facilitate emotional disclosure and that appears consistent with the suggestion that it represents a novel pharmacological class.

Comparable studies

Other randomized controlled trials on MDMA for anxiety, most cited first.

Study Year Design Participants
Gender differences in the subjective effects of MDMA Healthy volunteers with no or minimal MDMA experience 2001 Pooled analysis of three double-blind placebo-controlled studies n = 74
Reduction in social anxiety after MDMA-assisted psychotherapy with autistic adults: a randomized, double-blind, placebo-controlled pilot study. Autistic adults with marked to very severe social anxiety 2018 Randomized controlled trial n = 12
MDMA-assisted psychotherapy for treatment of anxiety and other psychological distress related to life-threatening illnesses: a randomized pilot study People with life-threatening illnesses and anxiety 2020 Randomized controlled trial n = 18
A randomized controlled trial of 3,4-methylenedioxymethamphetamine (MDMA) and fear extinction retention in healthy adults Healthy adults aged 21–55 from a major metropolitan area 2022 Randomized controlled trial n = 34
Effects of MDMA-assisted therapy for PTSD on self-experience Participants with severe PTSD 2024 Randomized controlled trial n = 90

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