John Dixon Mollon is Professor of Visual Neuroscience at the University of Cambridge. He is also Fellow and Lecturer in Psychology at Gonville and Caius College. He is a Fellow of OSA and the Royal Society, and received the 2000 Edgar D. Tillyer Award from OSA “for his leadership for over a quarter of a century in vision research, with contributions to psychophysics, microspectrometry, molecular genetics, field studies of wild primates and normal and defective color vision.”