Clinical studies

Women needed for a sleep study

Menopausal women 45 years and older wanted for study on the sleep-wake cycle.

  • One period of 2 weeks at home to complete questionnaires
  • One laboratory visit (72 hours spanning 4 days)

Risks and discomforts: blood samples, frequent visits, and overnight stays in our research centre

To check your eligibility, please visit:

Study Location:

Centre for Study and Treatment of Circadian Rhythms
Douglas Mental Health University Institute
6875 Boulevard LaSalle
Montreal, Quebec
H4H 1R3

Contact us to have more information

Are you very stressed out?

We are looking for generally healthy men and women (who do not take any hormonal contraception) aged 35 to 55 years old, who are stressed on a daily basis, to participate in a research study.

Study on memory, hormones and Alzheimer's disease

•         Natasha Rajah’s laboratory is investigating how biological sex, menopausal status in women, and genetic risk factors for Alzheimer's disease (such as apolipoprotein E4 [ApoE4]) influence brain activity, brain structure and memory in healthy adults (18-75 years). In other words, we want to examine if there are sex differences in memory and brain function at midlife. Also, verify the impact of certain genes on memory and brain function.

•         In addition, we wish to investigate how hormonal changes during menopausal transition affect memory and brain function in middle-aged women.

•         We hope our results will improve our understanding of the influence of aging and genetic risk factors for Alzheimer's disease on memory and brain function in middle-aged adults.

The effects of sleep restriction/extension on children with ADHD: What a difference an hour makes?

Sleep is essential for a child’s ability to pay attention and regulate behaviour during the day. The goal of the study is to determine whether children can improve their attention and behaviour by sleeping more, and whether an insufficient amount of sleep is a factor that affects their difficulties during the day.


Predictive factors of outcome following a Major Depressive Episode in adolescents: a prospective clinical, neurocognitive and neuroimaging study

We are currently conducting a research project on the evolution of depressive symptoms in order to study factors associated with depression.

The ultimate goal of this study is to develop better methods to treat adolescents and young adults with depression and prevent suicide.

Study on alcohol and safe driving

We are currently looking at the effects of alcohol intake on safe driving.

Clinical and pharmacogenetic study of Attention-Deficit/Hyperactivity disorder (ADHD)

Our team of researchers specializing in the field of ADHD includes child psychiatrists, psychologists and a psychiatric geneticist, and explores the causes of ADHD in children, in order to develop better treatments.


Our goal is to understand how we can slow or reverse the emergence of AD symptoms. Your participation will let us study how to prevent declines in brain health. Without the participation of research volunteers, such studies are impossible.