Connect Online Access for Drugs, Society, and Human Behavior

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About the Author

Carl Hart

Dr. Carl Hart is an Associate Professor in both the Departments of Psychiatry and Psychology at Columbia University and is also a Research Scientist in the Division of Substance Abuse at the New York State Psychiatric Institute. A major focus of Dr. Hart’s research is to understand the complex interactions between neurobiological and environmental factors that mediate and modulate the actions of drugs of abuse, including drug-taking behaviour and cognitive performance. Dr. Hart’s research has been supported by the National Institute on Drug Abuse for the past several years. In addition to his substantial research responsibilities, Dr. Hart teaches an undergraduate Drugs and Behaviour course and was recently awarded Columbia University’s highest teaching award.

Charles Ksir

Charles Ksir received his bachelor’s degree in Psychology from the University of Texas at Austin and his Ph.D. from Indiana University in Bloomington. Following his postdoctoral training in Neurobiology at the Worcester Foundation in Massachusetts, he began a 34-year career in teaching and research at the University of Wyoming, where he also served in a variety of administrative positions. Now a professor emeritus, he focuses his efforts on teaching and textbook writing. He has taught the psychology course Drugs and Behaviour to more than three thousand students since 1972 and has received several teaching awards.