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Journal Article

Citation

Stewart LH, Ferguson B, Morgan CJ, Swaboda N, Jones L, Fenton R, Wall MB, Curran HV. J. Psychopharmacol. 2014; 28(11): 1001-1008.

Affiliation

Clinical Psychopharmacology Unit, University College London, London, UK v.curran@ucl.ac.uk.

Copyright

(Copyright © 2014, SAGE Publishing)

DOI

10.1177/0269881114544775

PMID

25122044

Abstract

BACKGROUND: Acute recreational use of 3,4-methylenedioxymethamphetamine (MDMA; 'ecstasy') can promote pro-social effects which may alter interpersonal perceptions. AIMS: To explore such effects, this study investigated whether acute recreational use of ecstasy was associated with changes in individual perception of trustworthiness of people's faces and co-operative behaviours.

METHOD: An independent group, repeated measures design was used in which 17 ecstasy users were tested on the night of drug use (day 0) and again three days later (day 3); 22 controls were tested on parallel days. On each day, participants rated the trustworthiness of 66 faces, carried out three co-operative behaviour tasks (public good; dictator; ultimatum game) and completed mood self-ratings.

RESULTS: Acute ecstasy use was associated with increased face trustworthiness ratings and increased cooperative behaviour on the dictator and ultimatum games; on day 3 there were no group differences on any task. Self-ratings showed the standard acute ecstasy effects (euphoria, energy, jaw clenching) with negative effects (less empathy, compassion, more distrust, hostility) emerging on day 3.

CONCLUSIONS: Our findings of increased perceived trustworthiness and co-operative behaviours following use of ecstasy suggest that a single dose of the drug enhances aspects of empathy. This may in turn contribute to its popularity as a recreational drug and potentially to its enhancement of the therapeutic alliance in psychotherapy.


Language: en

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