Joshua Greene is a professor of Psychology at Harvard University. 

Greene is an experimental psychologist, neuroscientist, and philosopher. He studies moral judgment and decision-making, primarily using behavioral experiments and functional neuroimaging (fMRI). Other interests include religion, cooperation, and the capacity for complex thought. He is the author of Moral Tribes: Emotion, Reason, and the Gap Between Us and Them.

Greene’s other research interests include moral judgment and decision-making; cooperation and conflict-resolution; the neural bases of high-level cognition (multimodal compositional semantics).