Study Overview

Researchers at Indiana University are looking for current and frequent cannabis users to take part in a research study involving interviews, questionnaires, and attention and coordination tasks to understand the effects of cannabis on the brain, body and day-to-day functions.
*This study is not intended to promote drug use, but to recruit those who regularly use cannabis to understand its effects on the brain and behavior.*
Participant’s information and identity will be kept confidential.

Study Description

What Is Involved?
Study participation will consist of two independent sessions:
Session One (approx. 30 minutes-1½ hours)
·        Structured interview about your past mental health
·        Demographic questionnaires
·        Self-report questionnaires pertaining to personality, emotional, and behavioral challenges
Session Two (approx. 2 hours)
·        A urine drug screen
·        Attention and coordination tasks
·        Heart rate and skin conductance measurement
·        Eight (8) saliva samples
·        Three self-report questionnaires
All visits will take place in-person at the IUPUI Health Sciences Building in Indianapolis, IN and will take between 2½ - 4 hours total.
Participants will be paid $12 per hour of participation and can earn $25-35 total for completing all study tasks.
Who Is Eligible?
·       Between 18-40 years of age
·       Frequent, chronic cannabis user (use at least 3 times per week for 6 months)
·       Speak/read/write in English as your first language
·       Have normal or corrected-to-normal hearing and vision
·       Have successfully completed high school
·       Are in overall good physical health
·       Do not have current (at least 6 months) psychiatric illness

Additional Information

INTERESTED IN PARTICIPATING? Please email with the subject line “Attention and Coordination Study,” and include the following information:
1.       Name
2.       Times/day for a 10-minute preliminary phone interview to determine eligibility
You may also contact the study team directly at (317) 278-3455

Recruitment Status


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