Study to find link between light and sleep patterns in kids

An innovative research project is set to explore the relationship between light and sleep patterns in children with learning difficulties.
A researcher from Heriot-Watt University's School of the Built Environment is studying the association between exposure to blue light and sleep patterns in children with Autistic Spectrum Disorders (ASD) or Attention Deficit Hyperactivity Disorder (ADHD).
Blue light is the bright light strongest between mid-morning and mid-afternoon which helps us synchronise our body clock.
It suppresses production of the brain chemical called melatonin which helps us fall asleep.
PhD research student Amanda Nioi, 32, who is leading the study from Heriot-Watt University, said, "While there is evidence of the impact of increased blue light on older people and adolescents, findings of the effect of blue light exposure in children with ASD and ADHD is very limited."

"The intention of the study is to profile the sleep patterns of children with ASD or ADHD and to further understand their daily light routine," she said.

This will include time spent indoors/outdoors and the use of light emitting electronic devices such as TV screens, smart phones and self-luminating tablets.
"It's been known to researchers for some time that using computers and phones, especially before you go to bed, can lead to a poor night's sleep.
However, a better understanding of this is required, particularly in young people who might spend increasing amounts of time playing computer games or searching the web on their phones.

Amanda will work with volunteers from the Falkland House School in Fife, which specialises in the education of boys who require additional learning support.
Five pupils will wear specially designed watches, called as actiwatches, which contain sensors collecting light and movement data.
Amanda Nioi received funding from the Engineering and Physical Sciences Research Council (EPSRC) to carry out her research.