The impact of oxytocin on emotion recognition and trust: Does disordered eating moderate these relationships?

Isabel Krug, Stephanie Fung, Shanshan Liu, Janet Treasure, Chia Huang, Kim Felmingham, Matthew Fuller-Tyszkiewicz and Olivia McConchie

PLOS ONE, 2024, vol. 19, issue 5, 1-18

Abstract: Objectives: The current study aimed to investigate the impact of oxytocin on emotion recognition, trust, body image, affect, and anxiety and whether eating disorder (ED) symptoms moderated any of these relationships. Method: Participants (n = 149) were female university students, who were randomly allocated to receive in a double-blind nature, a single dose of oxytocin intranasal spray (n = 76) or a placebo (saline) intranasal spray (n = 73). Participants were asked to complete an experimental measure of emotion recognition and an investor task aimed to assess trust. Results: The oxytocin group exhibited better overall performance on the emotion recognition task (especially with recognising positive emotions), and a decline in state positive affect than the control group at post-intervention. However, these effects were not moderated by ED symptom severity, nor were effects found for state anxiety, negative affect, body image and recognising negative emotions in the emotion recognition task. Conclusion: The current findings contribute to the growing literature on oxytocin, emotion recognition and positive affect and suggest that ED pathology does not moderate these relationships. Future research would benefit from examining the efficacy of an oxytocin intervention using a within-subjects, cross-over design, in those with sub-clinical and clinical EDs, as well as healthy controls.

Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0303824

DOI: 10.1371/journal.pone.0303824

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