Effects of oxytocin on empathy, introspective accuracy, and social symptoms in schizophrenia: A 12-week twice-daily randomized controlled trial

Schizophrenia Research
Tate HalversonDavid L Penn

Abstract

The effects of intranasal oxytocin, a neuropeptide involved in prosocial behavior and modulation of neural networks underlying social cognition and emotion regulation, have been studied in schizophrenia. We tested the hypothesis that twice-daily intranasal oxytocin administered for 12-weeks would improve tertiary and exploratory outcomes of self-reported social symptoms, empathy and introspective accuracy from the Jarskog et al. (2017) randomized controlled trial. Sixty-eight stable outpatients with schizophrenia or schizoaffective disorder were randomized to receive oxytocin (24 IU twice daily) or placebo. Introspective accuracy was assessed with the Specific Level of Functioning Scale and the Interpersonal Perception Task. Empathy was assessed with the Interpersonal Reactivity Index (IRI), and social symptoms were assessed with the Liebowitz Social Anxiety Scale and the Green et al. Paranoid Thoughts Scales. Outcomes were assessed at baseline, six, and twelve weeks. Results demonstrated limited effect of oxytocin with some improvement on the IRI Perspective-Taking Subscale. No additional between-group differences emerged on self-reported symptoms, empathy, or introspective accuracy.

Citations

Oct 28, 2019·Hormones and Behavior·Tanya L ProcyshynBernard J Crespi
Mar 7, 2021·International Journal of Molecular Sciences·Kah Kheng GohHsien-Yuan Lane
May 24, 2021·Psychoneuroendocrinology·A M Barchi-Ferreira, F L Osório
Jun 18, 2021·Schizophrenia Research. Cognition·Joshua E MervisPiper Meyer-Kalos

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