Participants sought: study into Delayed Sleep Phase Disorder

Seeking individuals with Delayed Sleep Phase Disorder as well as healthy volunteers aged 18-30

The study aims to investigate the effects of light on the body clock in Delayed Sleep Phase Disorder.

Who can take part?

• You are an individual with either a healthy sleep with no sleep disorders or delayed sleep phase disorder (go to sleep late and find it hard to wake up early)
• You have no history of psychiatric or neurological illness, and substance abuse disorder
• You are not taking any medications that might affect sleep (e.g., melatonin, sedatives)
• You have not undertaken shift work in the last 3 months
• You are non-smoker
• You are of Caucasian background
• You are a native English speaker
• You have not undertaken transmeridian travel in the last 3 months

What is involved?
The study involves a screening visit (up to 2 hours), a ~8 hour in-home assessment of melatonin levels (a sleep promoting hormone), in-home sleep monitoring for ~3 weeks, and an in-lab study component, which is 6 days in length. During this study, you will be sleep deprived for two periods of up to 30 hours each. You will provide saliva and urinary samples regularly and complete a range of cognitive tests.

Will I be reimbursed?
You will be compensated for completing each part of the study, with a minimum total payment of $50 and a maximum of $1750 for completion of all components of the study.

Who is running the project?
This study is being conducted under the supervision of Dr. Sean W. Cain. The School of Psychology and Psychiatry at Monash University and Monash University Sleep and Circadian Medicine Laboratory. If you are interested in participating, or require more information, please contact: Base.dspdlight@monash.edu

Monash University Human Research Ethics Committee Approval Project number: CF15/725 - 2015000331