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Clinical Addictions Research Laboratory

Social Smoking Brain Imaging Project

The Social Smoker Brain Imaging Project (SSBI) is a scientific research study that examines the effects of common substances like alcohol, stimulants, and sedatives on the moods, behaviors, and brain activity of social smokers.

The SSBI is conducted by researchers at the Clinical Addictions Research Laboratory (CARL) at the University of Chicago. We are currently recruiting volunteers (ages 21-35) to take part in this study.

Please take a few moments to learn more about the study. If you are interested in participating and feel that you meet the qualifications, we encourage you to apply by completing a brief survey. To make sure that applicants meet the basic qualifications, we also ask that all candidates complete an in-person screening at our lab.

After being selected for the study, participants will complete 2 experimental sessions, with each lasting between 4 and 4.5 hours.

During each experimental session, participants may consume alcohol, a stimulant, a sedative, a placebo (nothing) or a combination of these substances. They will then answer questionnaires about their moods and behaviors, provide breath and saliva samples, and will take part in an fMRI scan.


To be eligible for the study, you must:


To make sure that all participants meet the basic requirements for participation, applicants will take part in an in-person screening, which will last between 2 and 2.5 hours. During this screening, applicants will:

While we do not pay you for your time at this screening, we do provide CTA and parking passes for your transportation needs.

Experimental Sessions

This study consists of 2 experimental sessions, beginning in the afternoon. Each session will last between 4 and 4.5 hours and take place in our lab at the University of Chicago. During each session, participants will:

For each session, participants will have the option of arranging their own ride home, for which an extra $15 will be given for the session, or receiving a ride home from a licensed car service, at our expense.


Study Overview


fMRI Information




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