Yale Cannabis Study
Greenlighter
- Joined
- Jun 24, 2025
- Messages
- 2
This study has ethical and scientific approval by the Yale University IRB
How Does Cannabis Affect the Brain?
The Powers Lab at Yale University is recruiting people who are planning to use cannabis for
a fully online study that measures how cannabis affects basic perception and learning using
brief games and questionnaires.
*** NOTE: If you have completed our Psychedelics Study, you should NOT complete this one! However, if you were ineligible to participate, you are more than welcome!
WHAT DOES THE STUDY INVOLVE?
- 4 Hours of Questionnaires and games (though you can take breaks).
- Signing a consent form and completing an eligibility survey.
- 6 Questionnaires about cannabis drug use, mental health, and how you think.
- 4 Online games (10-25 minutes per game) through two time points.
- 2 Zoom calls with a researcher as you play the games.
WHAT ARE THE REQUIREMENTS TO START?
- A computer (not a smartphone or a tablet)
- Stable internet
- Good headphones
- A private, distraction-free place
WHAT DO PARTICIPANTS GET?
- $120 via digital VISA gift card (sent via email), Amazon gift card (emailed), Prolific account (direct),
or MTurk account (direct)
HOW DO I START?
- Open the link below to the REDCap survey–you’ll start on the consent and automatically
move through the screening survey, questionnaires, and games.
- RedCap Survey Link!
FOR MORE INFORMATION ABOUT US AND THE STUDY:
How Does Cannabis Affect the Brain?
The Powers Lab at Yale University is recruiting people who are planning to use cannabis for
a fully online study that measures how cannabis affects basic perception and learning using
brief games and questionnaires.
*** NOTE: If you have completed our Psychedelics Study, you should NOT complete this one! However, if you were ineligible to participate, you are more than welcome!
WHAT DOES THE STUDY INVOLVE?
- 4 Hours of Questionnaires and games (though you can take breaks).
- Signing a consent form and completing an eligibility survey.
- 6 Questionnaires about cannabis drug use, mental health, and how you think.
- 4 Online games (10-25 minutes per game) through two time points.
- 2 Zoom calls with a researcher as you play the games.
WHAT ARE THE REQUIREMENTS TO START?
- A computer (not a smartphone or a tablet)
- Stable internet
- Good headphones
- A private, distraction-free place
WHAT DO PARTICIPANTS GET?
- $120 via digital VISA gift card (sent via email), Amazon gift card (emailed), Prolific account (direct),
or MTurk account (direct)
HOW DO I START?
- Open the link below to the REDCap survey–you’ll start on the consent and automatically
move through the screening survey, questionnaires, and games.
- RedCap Survey Link!
FOR MORE INFORMATION ABOUT US AND THE STUDY:
- Questions and concerns are welcomed by posting comments and/or emails to [email protected] and [email protected], and or messages to YalePsychedelicStudy
- Personal identifying information is not needed — while an email is needed for VISA or Amazon gift card, these do not need to be your actual addresses (and we include a guide for how to set up automatic email forwarding). Those with a Prolific Account may complete the study via Prolific to avoid sharing any information at all.
- Link to the Powers Lab website: https://medicine.yale.edu/lab/powers/ Link to the main researcher’s bio at Yale Medical School: https://medicine.yale.edu/profile/maximillian-greenwald/
