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Infants Show Physiological Responses Specific to Parental Hugs

Caregivers hug their infants to express affection and joy. However, it remains unknown how infants react to being hugged. Here we examined heart rate responses in first-year infants during a hug, hold, and tight hug from parents. Infants older than four months showed an increased R-R interval (RRI)...

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Detalles Bibliográficos
Autores principales: Yoshida, Sachine, Kawahara, Yoshihiro, Sasatani, Takuya, Kiyono, Ken, Kobayashi, Yo, Funato, Hiromasa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7360522/
https://www.ncbi.nlm.nih.gov/pubmed/32259479
http://dx.doi.org/10.1016/j.isci.2020.100996
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author Yoshida, Sachine
Kawahara, Yoshihiro
Sasatani, Takuya
Kiyono, Ken
Kobayashi, Yo
Funato, Hiromasa
author_facet Yoshida, Sachine
Kawahara, Yoshihiro
Sasatani, Takuya
Kiyono, Ken
Kobayashi, Yo
Funato, Hiromasa
author_sort Yoshida, Sachine
collection PubMed
description Caregivers hug their infants to express affection and joy. However, it remains unknown how infants react to being hugged. Here we examined heart rate responses in first-year infants during a hug, hold, and tight hug from parents. Infants older than four months showed an increased R-R interval (RRI) during a hug, indicating reduced heart rates and pronounced parasympathetic activity. Few head movements predicted a higher RRI increase in infants during a parental hug compared with that during a hold and tight hug. Infants did not show an increased RRI during a hug from a female stranger. Infants younger than four months did not show RRI increase during parental hug but exhibited a decreased RRI correlated with contact pressure. Parents showed an increased RRI during hugging their infants. These results suggest the parent-infant hug underlies the parent-infant bonding and psychophysiological development of infants.
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spelling pubmed-73605222020-07-17 Infants Show Physiological Responses Specific to Parental Hugs Yoshida, Sachine Kawahara, Yoshihiro Sasatani, Takuya Kiyono, Ken Kobayashi, Yo Funato, Hiromasa iScience Article Caregivers hug their infants to express affection and joy. However, it remains unknown how infants react to being hugged. Here we examined heart rate responses in first-year infants during a hug, hold, and tight hug from parents. Infants older than four months showed an increased R-R interval (RRI) during a hug, indicating reduced heart rates and pronounced parasympathetic activity. Few head movements predicted a higher RRI increase in infants during a parental hug compared with that during a hold and tight hug. Infants did not show an increased RRI during a hug from a female stranger. Infants younger than four months did not show RRI increase during parental hug but exhibited a decreased RRI correlated with contact pressure. Parents showed an increased RRI during hugging their infants. These results suggest the parent-infant hug underlies the parent-infant bonding and psychophysiological development of infants. Elsevier 2020-04-06 /pmc/articles/PMC7360522/ /pubmed/32259479 http://dx.doi.org/10.1016/j.isci.2020.100996 Text en © 2020 The Author(s) http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yoshida, Sachine
Kawahara, Yoshihiro
Sasatani, Takuya
Kiyono, Ken
Kobayashi, Yo
Funato, Hiromasa
Infants Show Physiological Responses Specific to Parental Hugs
title Infants Show Physiological Responses Specific to Parental Hugs
title_full Infants Show Physiological Responses Specific to Parental Hugs
title_fullStr Infants Show Physiological Responses Specific to Parental Hugs
title_full_unstemmed Infants Show Physiological Responses Specific to Parental Hugs
title_short Infants Show Physiological Responses Specific to Parental Hugs
title_sort infants show physiological responses specific to parental hugs
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7360522/
https://www.ncbi.nlm.nih.gov/pubmed/32259479
http://dx.doi.org/10.1016/j.isci.2020.100996
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