CAAPS Affiliates

Affiliates of CAAPS



Carl Hart is Professor of Psychology in both the Departments of Psychiatry and Psychology at Columbia University. A major focus of Hart’s research is to understand complex interactions between drugs of abuse and the neurobiology and environmental factors that mediate human behavior and physiology. He is the author of the award-winning book High Price: A Neuroscientist’s Journey of Self-Discovery that Challenges Everything You Know about Drugs and Society.

Courtney D. Cogburn is an assistant professor at the Columbia School of Social Work. Her research integrates principles and methodologies across psychology, stress physiology and social epidemiology to investigate relationships between racism-related stress and racial health disparities across the life course. Her work has been supported by the National Institutes of Health and the Robert Wood Johnson Foundation. Cogburn research has been published in the Annual Review of Clinical Psychology and the Encyclopedia of Race and Racism, 2nd Edition, Volume 3 (126-131).

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Fredrick C. Harris is Professor of Political Science and Director of the Center on African American Politics and Society at Columbia University. His research interests include American politics with a focus on race and politics, political participation, social movements, religion and politics, political development, and African-American politics.

Geraldine Downey is Professor of Psychology and Director of Research for the Justice Institute at Columbia. The mission of the Justice Institute is to reduce the nation’s reliance on incarceration through education, research, and policy. Her research has focused on the personality disposition of rejection sensitivity (RS). This line of work has led her to study sensitivity to rejection based on personal, unique characteristics, as well as sensitivity to rejection based on group characteristics such as race and gender.

Ira Katznelson is an Americanist whose work has straddled comparative politics and political theory as well as political and social history. He is the author of many books, including, "Black Men, White Cities," "City Trenches: Urban Politics and the Patterning of Class in the United States," and "When Affirmative Action Was White: An Untold History of Racial Inequality in Twentieth-Century America."

Jeffery Fagan is the Isidor and Seville Sulzbacher Professor of Law at Columbia. His research and scholarship focuses on crime, law and social policy, and current research examines capital punishment, racial profiling, legal socialization of adolescents, the jurisprudence of adolescent crime, and perceived legitimacy of the criminal law. Fagan provided testimony for President Obama's Twenty-First Century Tasksforce for Policing.

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Valerie Purdie-Vaughns is Associate Professor of Psychology and the Director of the Laboratory of Intergroup Relations and the Social Mind (LIRSM) at Columbia. LIRSM incorporates insights from a range of disciplines—including psychology, sociomedical sciences, education, and legal scholarship—to develop a more robust understanding of how differences between social groups (e.g., with respect to, age, gender, race, nationality, sexual orientation, disability, social class, power) affect human behavior.