Wondering if your sweetheart reciprocates? Look into her eyes. Studies show that our pupils dilate when we feel strong emotions. Psychologist Bruno Laeng, of the University of Oslo, explains how scientists are using “pupillometry” and what pupil diameter suggests about mental activity.
Meet the Producer
About Flora Lichtman
Flora Lichtman is a host of Science Friday. In a previous life, she lived on a research ship where apertivi were served on the top deck, hoisted there via pulley by the ship’s chef.