Maternal odor reduces the neural response to fearful faces in human infants

Abstract

Maternal odor is known to play an important role in mother-infant-interaction in many altricial species such as rodents. However, we only know very little about its role in early human development. The present study therefore investigated the impact of maternal odor on infant brain responses to emotional expression. We recorded the electroencephalographic (EEG) signal of seven-month-old infants watching happy and fearful faces. Infants in two control groups exposed to no specific odor (control 1) or the odor of a different infant's mother (control 2) showed the expected EEG fear response. Crucially, this response was markedly absent in the experimental group exposed to their mother's odor. Thus, infants respond differently to fear signals in the presence of maternal odor. Our data therefore suggest that maternal odor can be a strong modulator of social perception in human infants.

Original languageEnglish
Article number100858
JournalDevelopmental Cognitive Neuroscience
Volume45
Pages (from-to)100858
ISSN1878-9293
DOIs
Publication statusPublished - 10.2020

Funding

This work was supported by funding of the German Research Foundation (DFG, grant-number JE 781/1-1 & 2 ). We thank Leonie Emmerich and Aylin Ulubas for help with the data acquisition, Jonas Obleser for helpful comments on the manuscript, and all the families for participating.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being
  2. SDG 10 - Reduced Inequalities
    SDG 10 Reduced Inequalities

Research Areas and Centers

  • Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)

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