1. Department of Speech-Language Pathology, University of Toronto, Toronto, Ontario, Canada;
2. Toronto Rehabilitation Institute, Toronto, Ontario, Canada;
3. The Speech & Stuttering Institute, Toronto, Ontario, Canada;
4. Department of Psychology, University of Toronto, Ontario, Canada;
5. Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Canada;
6. Rehabilitation Sciences Institute, University of Toronto, Toronto, Canada