Cognitive Brain Development Laboratory

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    Alcohol and Adolescent Brain Development Study

    A study comparing brain development between adolescents who have a high risk of developing alcohol-related issues versus those who have a low risk. We are looking for adolescents between the ages of 13 and 18 (who are still in junior high/high school) with either one biological parent who has a history of alcohol treatment/addiction/problems related to use or no family history of alcohol treatment/addition/problems related to use to participate in a research study investigating brain development. The study will require one to two visits to University of Iowa Hospitals and Clinics and involve filling out forms, a saliva sample, cognitive testing, and an MRI scan (no radiation). Guardians will be asked to fill out family history forms. Compensation is provided. If you are interested in participating, please contact Cari Linkenmeyer at 319-353-8520 or

    Marijuana Use and Brain Imaging Study

    A study examining how smoking marijuana might affect mental activities and blood flow in the brain. We are seeking volunteers between the ages of 19 and 55 who either have a diagnosis of schizophrenia or schizoaffective disorder or have no mental health diagnosis. Participants must be right handed, use marijuana regularly, and be willing to undergo a PET and MRI scan. The study will require three visits to the University of Iowa Hospitals and Clinics for a total of eight to nine hours. Compensation is provided. If you are interested in participating, please contact Rose Nguyen at 319-384-9302 or

    University of Iowa College Life Study

    A study examining brain development in University of Iowa of Iowa college freshmen in relation to health behaviors and substance use. We are looking for UI freshmen, between ages 18-19 years old who may or may not have used alcohol or other substances. This study will require 2-4 visits over the course of 2 years and 3 brief follow-ups by phone/email. Participation includes a blood draw, MRI scan (no radiation), filling out self and family history forms and cognitive testing. Participants can earn up to $460. If you are interested in participating, please contact Lindsey Fuhrmeister at 319-384-6884 or You can also determine if you are eligible by completing an online screen at  

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