Evidence map›Paper›PMID 34890230›Full record

ArticleScience advances2021

Maternal chemosignals enhance infant-adult brain-to-brain synchrony.

Yaara Endevelt-Shapira, Amir Djalovski, Guillaume Dumas, Ruth Feldman

Abstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
–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

32 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  13. Synchrony Across Brains.Annual review of psychology · 2025
    Review
  14. Past, Present, and Future of Human Chemical Communication Research.Perspectives on psychological science : a journal of the Association for Psychological Science · 2025
    Review
  15. Article
  16. Review
  17. Article
  18. The scent of cuteness-neural signatures of infant body odors.Social cognitive and affective neuroscience · 2024
    Article
  19. Article
  20. Article
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

4 authors.

Yaara Endevelt-ShapiraCenter for Developmental Social Neuroscience, The Interdisciplinary Center, Herzliya, Israel.ORCID 0000-0002-9235-4572
Amir DjalovskiCenter for Developmental Social Neuroscience, The Interdisciplinary Center, Herzliya, Israel.ORCID 0000-0002-3381-6087
Guillaume DumasPrecision Psychiatry and Social Physiology Laboratory, CHU Sainte-Justine Research Center, Department of Psychiatry, Université de Montréal, Montreal, QC, Canada.ORCID 0000-0002-2253-1844
Ruth FeldmanCenter for Developmental Social Neuroscience, The Interdisciplinary Center, Herzliya, Israel.ORCID 0000-0001-5048-1381

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Maternal body odors serve as important safety-promoting and social recognition signals, but their role in human brain maturation is largely unknown. Utilizing ecological paradigms and dual- electroencephalography recording, we examined the effects of maternal chemosignals on brain-to-brain synchrony during infant-mother and infant-stranger interactions with and without the presence of maternal body odors. Neural connectivity of right-to-right brain theta synchrony emerged across conditions, sensitizing key nodes of the infant’s social brain during its maturational period. Infant-mother interaction elicited greater brain-to-brain synchrony; however, maternal chemosignals attenuated this difference. Infants exhibited more social attention, positive arousal, and safety/approach behaviors in the maternal chemosignals condition, which augmented infant-stranger neural synchrony. Human mothers use interbrain mechanisms to tune the infant’s social brain, and chemosignals may sustain the transfer of infant sociality from the mother-infant bond to life within social groups.

Identifiers

PMID34890230
PMCPMC8664266

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

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 Socratic graph.