Cited by 55Circadian rhythm and melatoninInfant Health and DevelopmentSleep and Wakefulness Research

Mother–infant circadian rhythm: Development of individual patterns and dyadic synchrony

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Thomas, Karen A., Burr, Robert L., Spieker, Susan, Lee, Jungeun, Chen, Jessica·2014·Early Human Development

Abstract

Background Mutual circadian rhythm is an early and essential component in the development of maternal-infant physiological synchrony.Aims The aim of this to examine the longitudinal pattern of maternal-infant circadian rhythm and rhythm synchrony as measured by rhythm parameters.Study design In-home dyadic actigraphy monitoring at infant age 4, 8, and 12 weeks.Subjects Forty-three healthy mother-infant pairs.Outcome measures Circadian parameters derived from cosinor and non-parametric analysis including mesor, magnitude, acrophase, L5 and M10 midpoints (midpoint of lowest 5 and highest 10h of activity), amplitude, interdaily stability (IS), and intradaily variability (IV).Results Mothers experienced early disruption of circadian rhythm, with re-establishment of rhythm over time. Significant time effects were noted in increasing maternal magnitude, amplitude, and IS and decreasing IV (p<.001). Infants demonstrated a developmental trajectory of circadian pattern with significant time effects for increasing mesor, magnitude, amplitude, L5, IS, and IV (p<.001). By 12 weeks, infant phase advancement was evidenced by mean acrophase and M10 midpoint occurring 60 and 43 min (respectively) earlier than at 4 weeks. While maternal acrophase remained consistent over time, infants became increasingly phase advanced relative to mother and mean infant acrophase at 12 weeks occurred 60 min before mother. Mother-infant synchrony was evidenced in increasing correspondence of acrophase at 12 weeks (r=0.704), L5 (r=0.453) and M10 (r=0.479) midpoints.Conclusions Development of mother-infant synchrony reflects shared elements of circadian rhythm.

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Crossref · 10.1016/j.earlhumdev.2014.09.005

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Authors
Thomas, K. A., Burr, R. L., Spieker, S., Lee, J., & Chen, J.
Affiliations
University of Washington (US)
Corresponding author
Thomas, Karen A.
Venue
Early Human Development
Publisher
Elsevier BV
Published
2014-12
Volume
90
Issue
12
Pages
885-890
ISSN
0378-3782 (ISSN-L)
OpenAlex
W1968332860
Cited by
55
References
47
Citations by year
2026: 7 · 2025: 3 · 2024: 7 · 2023: 3 · 2022: 7 · 2021: 2 · 2020: 8 · 2019: 6 · 2018: 2 · 2017: 4 · 2016: 5 · 2015: 1
FWCI
1.62
Type
journal article
Language
en
Open access
Locations
  • Early Human Development (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
NICHD (R21 HD068597-01A, P30 NR011400)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Health Professions › Pharmacy › Infant Health and Development
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
circadian rhythm, mother-infant synchrony, dyadic synchrony, infant development, actigraphy, acrophase, interdaily stability, intradaily variability
MeSH terms
Adult, Child Development, Circadian Rhythm, Female, Humans, Infant, Infant, Newborn, Male, Maternal Behavior, Mother-Child Relations, Mothers, Motor Activity, Actigraphy

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