His innovative research program is focused on maternal cognition and examines the privileged status of infant emotions (expressed facially and vocally) on maternal brain functions, revealing the neural and cognitive mechanisms that have evolved to support caregiving. He is Principal Investigator at the Parent-Infant Research Lab at the University of Toronto Scarborough. In addition to his contributions to scientific journals, he coedited the book The Developing Infant Mind: Integrating Biology and Experience and was guest editor of a special issue of the journal Parent: Science and Practice.