1. George Koob

George Koob is a prominent American neuroscientist known for his research on the brain's role in addiction and stress. He has contributed significantly to understanding how substances like drugs and alcohol affect the brain's reward and fear systems. His work aims to identify the biological mechanisms behind addiction, which can aid in developing better treatments. Koob has held leadership roles in various scientific organizations and has published extensively on these topics, making him a key figure in neuroscience and psychology, particularly in the areas related to mental health and substance use disorders.