Louis A. Schmidt is an associate professor and associate chair in the Department of Psychology, Neuroscience, and Behavior at McMaster University in Ontario, Canada. He is a Core Member of the Offord Centre for Child Studies, Division of Child Psychiatry at McMaster Children's Hospital. He received his Ph.D. from the University of Maryland, College Park. His research interests are developmental psychophysiology, human social and affective neuroscience, and the use of EEG/ERP to understand individual differences in temperament and affective responses to normal and special populations.

Jacob A. Burack is a Professor of School Psychology and Human Development in the Department of Educational and Counselling Psychology at McGill University, Montreal and a researcher at Hopital Rivieres-des-Prairies in Montreal, Canada. He is also the founder and director of the McGill Youth Study Team. Along with his colleagues and students, he studies and works with a variety of populations, including First Nations adolescents, persons with autism spectrum disorders, and persons with Down syndrome.