Leona Corniere Leona Corniere is a Registered Psychologist in Whitehorse, Yukon. She works at the Child Development Centre, an early intervention program for preschool children and their families and has a private practice that includes school age children. Leona is currently on the Infant Mental Health Promotion Steering Committee and was a board member on the Northwest FASD Research Network, Yukon Council on Disabilities, Yukon Child Care Board, and Autism Yukon.