In your face: Children's expressions tell the story of poor sleep

children
Credit: CC0 Public Domain

When Shakespeare called sleep "nature's soft nurse," he was definitely onto something. Centuries later researchers have found that inadequate sleep in children affects their emotional functioning in ways that may predict longer-term social problems. A new study, published in Affective Science by University of Houston professor of psychology Candice Alfano, examined whether changes in children's facial expressions of emotion after sleep restriction predict social problems concurrently and/or over time.

"Sleep problems in are routinely linked with lower social competence and more problems in peer relationships, but we really don't understand what drives these associations," reports Alfano. Based on findings from some of her prior research, Alfano hypothesized that the answers might partly lie in the ways children's faces express emotions when tired.

To test this theory, Alfano and colleagues examined 37 children between the ages of 7 and 11 during two in-lab emotional assessments; one when children were well-rested and another after two nights of partial sleep restriction. During these assessments, children viewed positive (think kittens and ) and negative (think getting a shot and ferocious dogs) pictures on a computer screen while a high-definition camera recorded their . Participants' parents provided reports of their child's social functioning at that time and approximately two years later.

"As we suspected, children who displayed less positive facial expressions in response to pleasant images when sleep restricted were reported to have more social problems two years later, even when controlling for earlier social problems," said Alfano.

Although concurrent relationships between sleep-based changes in facial expressions and were not found, Alfano suggests that this may be due to developmental differences in and peer relationships.

"For , more explicit behaviors such as sharing and taking turns may be more important for friendships than subtle facial expressions. However, becomes more important with age," explains Alfano. "Facial expressions not only provide others with an understanding of how you are feeling but are known to have a contagion effect on how others feel."

The results support a burgeoning body of research that indicates poor sleep quality in childhood forecasts later socio-emotional problems and also indicates the importance of studies exploring how sleep affects multiple facets of children's mental health and well-being. Facial expression, a central aspect of social communication, is one aspect of emotion where sleep loss takes a toll.


Explore further

Insufficient sleep harms children's mental health

More information: Candice A. Alfano et al, Children's Emotional Expressivity After Sleep Restriction Forecasts Social Problems Years Later, Affective Science (2021). DOI: 10.1007/s42761-021-00078-2
Citation: In your face: Children's expressions tell the story of poor sleep (2021, October 19) retrieved 2 December 2021 from https://medicalxpress.com/news/2021-10-children-story-poor.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
57 shares

Feedback to editors