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Study Overview

This study examines the effects of common substances like alcohol, stimulants, and sedatives on the moods and smoking behaviors of social smokers. To make sure that all applicants meet the basic qualifications, we ask that all candidates complete a brief online survey as well as 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 may be asked to smoke cigarettes, which may contain various amounts of nicotine.


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 any time between 2pm and 5pm. 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.

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Study Overview
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