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Child Sleep and Socioeconomic Context in the Development of Cognitive Abilities in Early Childhood

Caroline P Hoyniak1, John E Bates1, Angela D Staples2

  • 1Indiana University.

Child Development
|February 28, 2018
PubMed

Insights

Delayed sleep schedules in toddlers are linked to poorer cognitive abilities. This sleep pattern also partially explains how socioeconomic factors affect early cognitive development in children.

Area of Science:

  • Developmental Psychology
  • Pediatric Sleep Medicine
  • Cognitive Neuroscience

Background:

  • Childhood sleep problems are well-researched, but toddlerhood associations remain unclear.
  • Toddlerhood is a critical period for rapid cognitive development.
  • Understanding sleep's role in early cognition is crucial for developmental trajectories.

Purpose of the Study:

  • To investigate the longitudinal association between sleep problems and cognitive abilities in toddlers.
  • To examine how sleep patterns relate to cognitive performance across different toddler ages.
  • To explore the mediating role of sleep in the socioeconomic context-cognition relationship.

Main Methods:

  • Longitudinal study of 493 toddlers aged 30, 36, and 42 months.
  • Objective sleep assessment using actigraphy to measure sleep schedules.
  • Standardized cognitive ability testing to assess developmental outcomes.

Main Results:

  • A between-subjects effect indicated that toddlers with delayed sleep schedules had poorer cognitive abilities.
  • No within-subjects effect was found, suggesting stable sleep patterns matter more.
  • Delayed sleep partially mediated the link between family socioeconomic status and child cognition.

Conclusions:

  • Sleep schedule timing, particularly delays, is associated with cognitive abilities in toddlers.
  • Socioeconomic factors may influence cognitive development through their impact on toddler sleep patterns.
  • Early identification and intervention for sleep problems may support cognitive development in at-risk populations.

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