About Us

About HRI

Homewood Research Institute (HRI) is a registered Canadian charity dedicated to transforming mental health and addiction treatment through research. We partner with leading scientists, universities, patients and clinicians to improve care, services and outcomes.

About the Recovery Journey Team

Jean Costello, PhD

Principal Investigator

Director of Research and Evaluation

Homewood Research Institute


Sarah Sousa, MSc

Former Senior Research and Evaluation Associate

Homewood Research Institute

Alysha Cooper, MSc

Former Data Analyst

Homewood Research Institute

Alyna Walji, BSc

Former Research Assistant

Homewood Research Institute

Brian Rush, PhD

HRI Senior Scientist

Scientist Emeritus

Institute for Mental Health Policy Research

Centre for Addiction and Mental Health


Depts. of Public Health Sciences and Psychiatry, University of Toronto

James MacKillop, PhD

HRI Senior Scientist

Peter Boris Chair in Addictions Research

Director, Peter Boris Centre for Addictions Research

Director, Michael E. DeGroote Centre for Medicinal Cannabis Research

Professor of Psychiatry and Behavioural Neurosciences, McMaster University