Relations between Infant Sleep Quality, Physiological Reactivity, and Emotional Reactivity to Stress at 3 and 6 Month

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  • February 26, 2019
Creator
  • Chandra, Archita
    • Affiliation: College of Arts and Sciences, Department of Psychology and Neuroscience
Abstract
  • This study examined the association between infant physiological self-regulation in baseline and stress-inducing scenarios and future sleep quality and emotional reactivity to stress. A sample of 89 healthy African American mother-infant dyads were recruited as part of the Neonatal and Pediatric Sleep study. Home visits were conducted when infants were 3 and 6 months of age. Baseline cardiac data was obtained at both time-points to assess RSA change (an index of physiological reactivity), sleep assessments were conducted for one week following the home visits at each time-point (from which actigraphy data was collected), and the still-face paradigm (SFP) was conducted at the 6 month time-point. Results showed significant associations between sleep and emotional reactivity llduring the SFP such that 6 month sleep efficiency was positively associated with neutral affect and negatively associated with positive affect in the normal episode of the SFP and amount of sleep minutes at 6 months was negatively associated with positive affect in the still-face episode of the SFP. In addition, significant links were found between sleep and RSA change in the SFP including a negative relationship between sleep efficiency at 3 months and self-regulation in the still-face episode of the SFP at 6 months and a negative relationship between 6 month sleep efficiency and RSA change from the normal to the still-face episodes of the SFP. These results suggest that there is a link between both early and concurrent sleep and emotional and physiological reactivity to stress.
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Rights statement
  • In Copyright
Note
  • Funding: William W. and Ida W. Taylor Honors Mentored Research Fellowship
Advisor
  • Propper, Cathi
Degree
  • Bachelor of Science
Academic concentration
  • Psychology
Honors level
  • Honors
Degree granting institution
  • University of North Carolina at Chapel Hill
Graduation year
  • 2017
Language
  • English

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