Investigating Neurocircuit Dysfunction Involved in Cannabis, Alcohol, and Sleep (INDICAS Study)


The CoPsyN lab and the BRAVE Lab have partnered up to investigate the relationship between withdrawal from substance use, sleep, and negative affect. This study utilizes high-density EEG sleep recordings. We are currently looking for healthy adults with no significant sleep, substance use, and mental health history between the ages of 25-65 to participate in this study. 

This study is actively recruiting! 

Please go to if you are interested to fill out our interest form for the study. A member of our team will contact you shortly with more information about participating in the study!

Frequently Asked Questions

What is an EEG?

  • An electroencephalogram (EEG) is a test that detects and records electrical activity in your brain using small, metal discs (electrodes) attached to your scalp. Your brain cells communicate via electrical impulses and are active all the time, even when you're asleep. EEG recordings  help us understand more about your sleep issues. 

Can I take the EEG off myself?

  • No, a trained member of the study staff must remove all the electrodes. The equipment is very fragile and expensive and therefore needs to be done by a member of the study staff. 

Where are the study visits?

  • All sessions will take place on Stanford campus at 1070 Arastradero Road, Palo Alto, CA, 94304. 

How long is each session?

  • The initial phone screening will take about 30 minutes. The in-person evening screening session is about 3 hours. The in-person morning screening session will take around 1 hour. All three evening sessions after will last around 2 hours. The successive morning sessions will then last around 1 hour.