We are an interdisciplinary team that seeks to improve the lives of people with HIV who use addictive drugs. The overarching goal of HARP is to advance our understanding of how HIV infection and drug abuse can alter neurobehavioral outcomes. To this end, our research integrates multimodal neuroimaging technologies with behavioral assessment strategies and clinical measures. We focus on a wide range of recreational drugs, including marijuana, cocaine, and opioids. Our research also investigates neurobehavioral predictors of risk behaviors and health outcomes among persons who use drugs, including reducing health disparities. The HARP team is committed to inclusivity and employs recruitment strategies to reach diverse groups, including those with minimal access to healthcare.