Body Odours Sampled at Different Body Sites in Infants and Mothers—A Comparison of Olfactory Perception

Body odours and their importance for human chemical communication, e.g., in the mother–child relationship, are an increasing focus of recent research. Precise examination of sampling methods considering physiology and feasibility aspects in order to obtain robust and informative odour samples is the...

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Main Authors: Katharina Hierl, Ilona Croy, Laura Schäfer
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/11/6/820
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author Katharina Hierl
Ilona Croy
Laura Schäfer
author_facet Katharina Hierl
Ilona Croy
Laura Schäfer
author_sort Katharina Hierl
collection DOAJ
description Body odours and their importance for human chemical communication, e.g., in the mother–child relationship, are an increasing focus of recent research. Precise examination of sampling methods considering physiology and feasibility aspects in order to obtain robust and informative odour samples is therefore necessary. Studies comparing body odour sampling at different body sites are still pending. Therefore, we sampled axilla, breast, and head odour from 28 mother–infant dyads and examined whether odour perception differs with regard to the body site. The participating mothers were asked to evaluate their own and their infant’s body odour samples, as well as odours of two unfamiliar mother–infant dyads. We tested whether maternal pleasantness and intensity evaluation, as well as recognition ability of the odours differed between the body sites. In infants, the head odour exhibited slightly lower pleasantness ratings than axilla and breast, and intensity ratings did not differ between body sites. In mothers, body site affected intensity ratings but not pleasantness ratings, as the breast odour was rated as less intense compared with head and axilla. Across all body sites, mothers rated the own and their infant’s odour as less intense when compared with unfamiliar samples. Recognition ability did not differ between body sites, and in line with previous studies, mothers were able to recognize their own and their own infant’s odour above chance. In sum, our study extends the previous methodological repertoire of body odour sampling and indicates that the axilla, breast, and head of adults as well as infants serve as informative odour sources.
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spelling doaj.art-10a1b3a6d3b241568f622bfaab346a782023-11-22T01:01:57ZengMDPI AGBrain Sciences2076-34252021-06-0111682010.3390/brainsci11060820Body Odours Sampled at Different Body Sites in Infants and Mothers—A Comparison of Olfactory PerceptionKatharina Hierl0Ilona Croy1Laura Schäfer2Department of Psychotherapy and Psychosomatics, Technical University of Dresden, 01062 Dresden, GermanyDepartment of Biological and Clinical Psychology, Friedrich-Schiller-University of Jena, 07743 Jena, GermanyDepartment of Psychotherapy and Psychosomatics, Technical University of Dresden, 01062 Dresden, GermanyBody odours and their importance for human chemical communication, e.g., in the mother–child relationship, are an increasing focus of recent research. Precise examination of sampling methods considering physiology and feasibility aspects in order to obtain robust and informative odour samples is therefore necessary. Studies comparing body odour sampling at different body sites are still pending. Therefore, we sampled axilla, breast, and head odour from 28 mother–infant dyads and examined whether odour perception differs with regard to the body site. The participating mothers were asked to evaluate their own and their infant’s body odour samples, as well as odours of two unfamiliar mother–infant dyads. We tested whether maternal pleasantness and intensity evaluation, as well as recognition ability of the odours differed between the body sites. In infants, the head odour exhibited slightly lower pleasantness ratings than axilla and breast, and intensity ratings did not differ between body sites. In mothers, body site affected intensity ratings but not pleasantness ratings, as the breast odour was rated as less intense compared with head and axilla. Across all body sites, mothers rated the own and their infant’s odour as less intense when compared with unfamiliar samples. Recognition ability did not differ between body sites, and in line with previous studies, mothers were able to recognize their own and their own infant’s odour above chance. In sum, our study extends the previous methodological repertoire of body odour sampling and indicates that the axilla, breast, and head of adults as well as infants serve as informative odour sources.https://www.mdpi.com/2076-3425/11/6/820body odoursampling methodsbody partsbody sitesfamily odourschemosignals
spellingShingle Katharina Hierl
Ilona Croy
Laura Schäfer
Body Odours Sampled at Different Body Sites in Infants and Mothers—A Comparison of Olfactory Perception
Brain Sciences
body odour
sampling methods
body parts
body sites
family odours
chemosignals
title Body Odours Sampled at Different Body Sites in Infants and Mothers—A Comparison of Olfactory Perception
title_full Body Odours Sampled at Different Body Sites in Infants and Mothers—A Comparison of Olfactory Perception
title_fullStr Body Odours Sampled at Different Body Sites in Infants and Mothers—A Comparison of Olfactory Perception
title_full_unstemmed Body Odours Sampled at Different Body Sites in Infants and Mothers—A Comparison of Olfactory Perception
title_short Body Odours Sampled at Different Body Sites in Infants and Mothers—A Comparison of Olfactory Perception
title_sort body odours sampled at different body sites in infants and mothers a comparison of olfactory perception
topic body odour
sampling methods
body parts
body sites
family odours
chemosignals
url https://www.mdpi.com/2076-3425/11/6/820
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