Fritz Strack

Fritz Strack is a renowned German psychologist and professor emeritus at the University of Würzburg, best known for his research on the 'facial feedback hypothesis,' which posits that facial expressions can influence emotional experiences. His most famous study involved participants holding a pen in their mouths to induce smiling and assess its effect on humor perception. Strack's work has sparked ongoing debate within the psychological community, particularly around the replicability of his findings, and he remains an influential figure in the field.