Effects of intranasal oxytocin on the attentional bias to emotional stimuli in patients with bulimia nervosa
AffiliationInje University; Chungbuk National University; King's College London
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AbstractBackground: Bulimia nervosa (BN) is characterized by binge eating and emotional dysregulation including increased negative affectivity (anger, anxiety). The aim of this study was to examine the effect of oxytocin on attentional processes towards anger in patients with BN. Method: The study design consisted of a double-blind, placebo-controlled within-subject crossover, single dose experiment. Sixty-four women (31 patients with BN and 33 healthy comparisons) completed self-reported measures to evaluate emotional difficulties and were administered a single dose of intranasal oxytocin (40IU) or placebo followed by a visual probe detection task to examine attentional orienting to angry or happy faces. Results: Patients with BN reported higher emotional dysregulation and more difficulties in controlling anger compared to the healthy comparison group. Patients with BN and the healthy women exhibited similar attentional bias to angry faces in the placebo condition. Intranasal oxytocin reduced the attentional bias towards angry faces in both the BN patients and the healthy women. Conclusions: We found that a single dose of oxytocin reduced vigilance towards angry faces in patients with BN as well as healthy women. The results showed that patients with BN are not different from healthy women in terms of vigilance towards threat.
CitationKim, Y. R., Eom, J. S., Leppanen, J., Leslie, M., & Treasure, J. (2018). Effects of intranasal oxytocin on the attentional bias to emotional stimuli in patients with bulimia nervosa. Psychoneuroendocrinology, 91, 75-78.
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