Cannabis Use Autonomic Activation & Leukocyte Activity (CUALA) Study

​The purpose of this study is to explore the potential psychosocial factors associated with substance use in students attending a Historically Black College or University. This study includes various psychological and epidemiological measures, including depressive symptomatology, sexual risk factors, ethnicity, quality of life, mindfulness and more. The Checkpoint Survey Study currently has over 1,700 participants.  

For more information about the study, please contact our research team at

    The purpose of this study is two fold: 1) To determine brain activity differences between marijuana users and non-users 2) to determine the association between central autonomic activation and inflammatory state in marijuana users. This study includes assessments of substance use disorders, cognitive function, inflammation, and more. The CUALA Study begins data collection this Spring 2020.

This project was funded by National Center for Advancing Translational Sciences (CTSA award No. 3UL1TR002649-02S1). For more information, feel free to contact Dr. Keen at 

The Effects of Racial Discrimination, Social Support, and Executive Function on HIV Health Outcomes in HIV Positive Heterosexual Black Men.

The Checkpoint Survey Study


Psychoneuroimmunology of Risk and Disease Laboratory​​

The Parasympathetic Activity, Neurocognition, & Drug Abuse (PANDA) Study

    The purpose of this study is to examine the potential influence of racial discrimination, social support, and executive function on HIV-related immune function. The sample is comprised of 100 heterosexual African Americans/Blacks living with HIV, including 50 males and 50 females. This study included urine drug screen, venipuncture, semi-structured interviews recording brief medical history, psychosocial factors and neurocognitive assessments. This study has now completed and we are analyzing the data.

For more information, feel free to contact Dr. Keen at ​This project was funded by Columbia University, via the National Institute of Mental Health (5 R25 MH080665-06)


The purpose of the PANDA study is to determine the associations among cardiovascular risk, neuropsychological performance, substance use, and other health-related factors. This study includes substance use disorder assessments, neurocognitive measures, and self-reported autonomic regulation. The PANDA Study currently has over 200 participants.

For more information, feel free to contact the PNIRD team at