Pascal van Lieshout is a Professor and Chair in the Department of Speech-Language Pathology in the Faculty of Medicine at the University of Toronto. He is a former Canada Research Chair in Oral Motor Function and director of the Oral Dynamics Laboratory (ODL; http://www.oraldynamicslab.ca). He studies oral motor control mechanisms in a variety of populations, aiming to understand how people produce speech and what might cause certain individuals to have problems performing this complex function.