Sarah Eisenstein (PhD in Neuroscience at University of Georgia, 2008) is an Assistant Professor in the Department of Psychiatry at the Washington University School of Medicine in St. Louis. She uses MRI and PET neuroimaging techniques to study the roles of white matter integrity and different neurotransmitter systems in diseases of the brain. She is currently researching the role of neuroinflammation in the behavioral aspects of obesity. She is also interested in how genetics and dopamine and opioid signaling interact to affect reward-related behavior in obesity, drug abuse, and other neuropsychiatric disorders.