Clinical studies

Simultaneous cognitive tasks in healthy individuals

We are studying the performance of cognitive tasks simultaneously in two healthy individuals

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

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.

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.


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.

This study is being run by the Stop-AD Centre.