Stanford psychologist Brian Knutson discusses neuroeconomics, the study of how brain activity drives financial decision making, in this interview from Yale's Experts in Emotion series led by June Gruber. Knutson explains how he became interested in emotion research and walks through his central findings, including work using brain imaging to track activity in reward regions like the nucleus accumbens as people anticipate gains and losses. He talks about how these neural signals can predict risky financial choices before people consciously decide, connecting affect and economic behavior. The interview closes with his thoughts on promising future directions in the field and practical advice for students hoping to study emotion. Filmed in interview format with on-screen chapter markers, running under half an hour, it offers a compact but substantive look at a researcher's career and methods rather than a general survey of the topic.