Intranasal oxytocin and OXTR genotype effects on resting state functional connectivity: A systematic review

Objective: Evaluate effects of intranasal oxytocin (IN‐OT) and OXTR genotype on resting state functional connectivity in the human brain. Methods: We searched research databases for peer‐reviewed empirical studies. Of 71 unique citations, 18 articles (13 IN‐OT, five OXTR) met full inclusion criteria. Results: Two studies examined effects on large‐scale networks; most examined acute effects on amygdala connectivity with other social and affective regions. OXTR studies identified three polymorphisms (rs2254298, rs2268498, rs53576) having allele‐ and sex‐dependent effects on prefrontal functional connectivity, and additive effects of OXTR risk alleles on reward circuitry. Age, sex, early life stress, and psychopathology emerged as potential moderators of both IN‐OT and OXTR effects. Discussion: IN‐OT appears to modulate resting state functional connectivity in a manner similar to its effects on task fMRI, consistent with hypothesized models of IN‐OT. However, conclusions are limited by the narrow range of neuroanatomical seed regions, and methodological and experimental design heterogeneity. Future studies should take into account individual differences. Findings may provide insight into mechanisms through which IN‐OT impacts human behavior.

• Publication year

  2018

• Venue

  Neuroscience and Biobehavioral Reviews

• Publication date

  2018-12-01

• Fields of study

  Biology, Medicine, Psychology

• Identifiers
  DOI 10.1016/j.neubiorev.2018.09.011PMID 30243577
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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