Dr. Johnson received his PhD in 1992 from Arizona State University, followed by a postdoctoral fellowship in the Center for Visual Science at Rochester. Prior to his current position at UCLA, he was an Associate Professor at NYU and an Assistant Professor at Cornell. His first job was as a Lecturer at Lancaster University, UK, where he is now a Visiting Research Fellow. His research concerns the origins and development of perception and cognition in humans, with a focus on attention, speech perception, face perception, object knowledge, learning mechanisms, brain development, and developmental disabilities.