Our Experts

The CORTEX Centre’s growing Expert Network includes distinguished academics and highly credentialed licensed professionals from Canada and the United States. Our network members have advanced expertise in forensic, clinical, counselling, rehabilitation psychology and neuropsychology, psychiatry and neuropsychiatry, occupational health, as well as medical and vocational rehabilitation, including advanced assessment, court testimony, research, and program and policy development.

CORTEX Centre experts are uniquely qualified to tackle a wide range of consulting and research projects, training and seminar initiatives, and highly challenging clinical cases and vocational scenarios, focusing on complex questions in high stakes’ legal and career contexts. Please note that a number of our psychology and neuropsychology experts are licensed to practice in multiple jurisdictions in Canada and the United States.

The members of the CORTEX Centre’s Expert Network include, but are not limited to:

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Izabela Z. Schultz, Ph.D.

Registered Psychologist
Professor, UBC
Founder and Clinical Director of CORTEX Centre

Lynn E. Alden, Ph.D.

Registered Psychologist
Professor, UBC

Rosemary Alvaro, Ph.D.

Registered Psychologist

Catherine Chlebak, M.A.

Registered Clinical Counsellor

Doug Cohen, Ph.D.

Registered Psychologist

John B. Armstrong Cortex Centre Assessment Vancouver

John B. Armstrong, MD, Ph.D.

Complex Chronic Pain Physician

Dr Ursula J. Gutteridge


Karin Christensen, Ph.D.

Registered Psychologist

Victor A. Colotla, Ph.D.

Registered Psychologist

Ken Craig, Ph.D., OC

Professor Emeritus
Psychology, UBC

Hettie de Beer, B.OT.

Registered Occupational Therapist

Peter Joy, Ph.D.

Registered Psychologist

Stephen Flamer, Ph.D.

Registered Psychologist

Sarah Greer, Ph.D.

Registered Psychologist
Instructor, Kwantlen Polytechnic University

Diana Hartel, Ph.D.

Registered Industrial/ Organizational Psychologist

Andrew Howard, MD, FRCPC

Clinical Associate Professor, UBC

Alex Jackson, M.Ed.

Vocational Rehabilitation Consultant

William J. Koch, Ph.D.

Registered Psychologist, ABPP
Clinical Professor, UBC

Macy Lai, Ph.D.

Registered Psychologist

Jane McEwan, Ph.D.

Registered Psychologist

Larissa Mead-Wescott, Ph.D.

Registered Psychologist, ABPP

Rami Nader, Ph.D.

Registered Psychologist
Adjunct Professor, UBC

Larry Myette, MD

Occupational Medicine

Lisa Drago Piechowski, Ph.D.

Registered Psychologist, ABPP
Associate Professor, Argosy University
American School of Professional Psychology

Gurdeep Parhar, MD

Executive Associate Dean
Faculty of Medicine, UBC
Occupational Medicine

Zal Saper, Ph.D.

Registered Psychologist

Amritpal Singh Shergill, Ph.D.

Registered Psychologist

Claire Sira, Ph.D.

Registered Psychologist

Alison Stewart, M.A.

Registered Rehabilitation Professional

Ursula Wild, Ph.D.

Registered Psychologist

Rosemary Vernon Wilkinson, Ph.D., ABPP

Registered Psychologist

Amy Zwicker, Ph.D.

Registered Psychologist

Derek Nordin

Certified Vocational Evaluator

Dr. Dina McConnell

Registered Psychologist

Marie-Helen Pelletier, Ph.D., MBA

Registered Psychologist

Please contact the CORTEX Centre by phone or email regarding your inquiry and we will be happy to help you select the expert who is best suited to address your particular needs. In addition to requests and referrals from our home province of British Columbia, all Canadian, U.S., and international inquiries are welcome.