| Autor: |
Maria Hernandez-Reif, Nahide Gungordu |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Infant behaviordevelopment. 67 |
| ISSN: |
1934-8800 |
| Popis: |
This longitudinal study examined parents' perceptions of infant sleep behaviors in relation to cognitive and language development, and infants' stress hormone (cortisol) levels. Infants were recruited and assessed at 8 months and then again 6 months later at 14 months. At both times, parents reported on infants' home sleep environment and sleep behaviors; the infants' childcare classroom teachers completed standardized questionnaires on the children's cognitive and language development skills; and researchers collected numerous saliva samples from infants at both times to assay cortisol stress hormone levels. Pearson correlation analyses indicated that 8-month-old infants' optimal sleep in their home environment positively and modestly related to their cognitive skills and language development when they were 14-month-old toddlers. These results suggest that cognitive development and language learning in the first year of life are linked to sleep behaviors. Additionally, optimal home sleep in toddlerhood was positively and moderately correlated with higher morning stress hormone levels. The development of the HPA axis in infancy and toddlerhood is discussed as is the development and regulation of the hypothalamic-pituitary-adrenal axis and diurnal cycles. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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