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Dr. Irene Liu, Ph.D., R.Psych.

Dr. Irene Liu completed a Ph.D. in Clinical Psychology from the University of Calgary and an accredited pre-doctoral internship at the London Clinical Psychology Residency Consortium (Neuropsychology Track). Currently, she is a registered Clinical Neuropsychologist at Pachet Assessment Rehabilitation Services and Alberta Health Services. She provides assessment services to patients with a variety of presenting neurological and psychological problems. Irene has been involved with multiple clinical research projects, including studies of stroke and other neurological disorders, depression, spatial disorders, and schizophrenia. She is an Adjunct Professor at St. Mary’s University. 

Sarah Vanderveen, MSc.


Sarah Vanderveen has worked as a Registered Clinical Psychologist at PARS since 2013. She routinely completes comprehensive psychological assessments, cognitive assessments, and capacity assessments. She has specific and relevant training in capacity assessment, dual diagnosis, and Post-Traumatic Stress Disorder assessment and treatment. She is currently the consulting psychologist for the Association for the Rehabilitation of the Brain Injured (ARBI) where she provides consultation within the context of a multidisciplinary team, as well as counselling with clients and families who have been affected by brain injury. Sarah continues to provide presentations and education around emotional and behavioural changes secondary to brain injury, as well as adjustment to disability for individuals and caregivers. She also maintains a small caseload of individual and family counselling clients. 

Psychology Assistants

Kevin          Carrie          Cheryl          Aiko Megan