Evidence map›Paper›PMID 25522395›Full record

Trial reportThe international journal of neuropsychopharmacology2014

Oxytocin affects the connectivity of the precuneus and the amygdala: a randomized, double-blinded, placebo-controlled neuroimaging trial.

Jyothika Kumar, Birgit Völlm, Lena Palaniyappan

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in The international journal of neuropsychopharmacology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed.

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  6. Common and dissociable effects of oxytocin and lorazepam on the neurocircuitry of fear.Proceedings of the National Academy of Sciences of the United States of America · 2020
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  13. Imaging of intranasal drug delivery to the brain.American journal of nuclear medicine and molecular imaging · 2020
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Jyothika KumarTranslational Neuroimaging in Mental Health, Division of Psychiatry and Applied Psychology, University of Nottingham, Nottingham, United Kingdom (Ms Kumar, Dr Völlm, and Dr Palaniyappan); Nottinghamshire Healthcare NHS Trust, Nottingham, United Kingdom (Drs Völlm and Palaniyappan).
Birgit VöllmTranslational Neuroimaging in Mental Health, Division of Psychiatry and Applied Psychology, University of Nottingham, Nottingham, United Kingdom (Ms Kumar, Dr Völlm, and Dr Palaniyappan); Nottinghamshire Healthcare NHS Trust, Nottingham, United Kingdom (Drs Völlm and Palaniyappan).
Lena PalaniyappanTranslational Neuroimaging in Mental Health, Division of Psychiatry and Applied Psychology, University of Nottingham, Nottingham, United Kingdom (Ms Kumar, Dr Völlm, and Dr Palaniyappan); Nottinghamshire Healthcare NHS Trust, Nottingham, United Kingdom (Drs Völlm and Palaniyappan). Lena.Palaniyappan@nottingham.ac.uk.

Funding

Wellcome Trust WT096002/Z/11/Z
6 · The paper itself

Abstract

backgroundAlthough oxytocin is one of the most widely studied neuropeptides in recent times, the mechanistic process by which it modulates social-affective behavior in the brain is not yet clearly understood. Thus, to understand the neurophysiological basis of oxytocin effects, we used resting-state functional MRI to examine the effects of intranasal oxytocin on brain connectivity in healthy males.

methodsUsing a randomized, double-blinded, placebo-controlled, crossover design, 15 healthy male volunteers received 24 IU intranasal oxytocin or placebo prior to resting-state functional MRI acquisition at 3T.

resultsWe found that oxytocin significantly reduced the degree centrality of the right precuneus (P<.05). Oxytocin also reduced connectivity between the bilateral amygdalae and between the right precuneus and the right and left amygdala (P<.05). Although there were no significant changes in regional homogeneity at the whole brain level, posthoc results showed a reduction involving the right precuneus (P<.05).

conclusionsThese results show that oxytocin affects one of the key centers in the brain for social cognition and introspective processing, the precuneus, and enhances our understanding of how oxytocin can modulate brain networks at rest. An improved understanding of the neurophysiological effects of oxytocin can be important in terms of evaluating the mechanisms that are likely to underlie the clinical responses observed upon long-term oxytocin administration.

Indexed as

Magnetic Resonance ImagingAdministration, IntranasalAdultAmygdalaDouble-Blind MethodFemaleHumansImage Processing, Computer-AssistedMaleNeural PathwaysNeuroimagingNeuropeptidesOxytocinParietal LobeTreatment OutcomeNeuropeptidesOxytocinamygdalafMRIoxytocinprecuneusresting-state

Identifiers

PMID25522395
PMCPMC4376540

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.