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Dr. Petra Gyles, C. Psych is a Clinical & School Psychologist specializing in child and adolescent populations.  

Dr. Petra Gyles Child Psychologist Barrie

She completed her Ph.D. at McGill University.  Dr. Gyles has 15 years experience working in various school systems, as well as work experience in clinical/rehabilitation outpatient and private practice settings in Toronto, Montreal,  and remote rural and First Nations communities.  


Her research and publications have examined inquiry-based learning, giftedness, resilience, intrinsic motivation, and specifically ‘Growth Mindsets’.  She has shared her research contributions at conferences across Canada and North America.  Dr. Gyles has taught graduate and undergraduate courses at various post-secondary institutions including the University of Toronto,    McGill University, and Seneca College.

Dr. Gyles is a Registered Member with the College of Psychologists of Ontario.  

Therapy Nav

Dr. Gyles specializes in therapy for children and teens targeting depression, anxiety, academic anxiety, OCD, perfectionism, trauma, school struggles, and social issues.  She uses evidence-based practices and takes a cognitive-behavioural therapy approach, with aspects of positive psychology, mindfulness, emotion focused, and narrative therapy approaches incorporated into treatment.

Dr. Gyles provides psychological, psychoeducational, and neurodevelopmental assessments for preschool and school-age children and adolescents with Autism Spectrum Disorders, Developmental Disabilities, Learning Disabilities, ADHD, behavioural issues, social-emotional issues, and diagnostic assessments for mental illness.  She completed specialized training at the University of Michigan for Autism Spectrum assessment (e.g., ADOS-2, ADI-R).

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