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

Research and Evaluation Scientist

Homewood Research Institute


Sarah Sousa, MSc

Senior Research Associate

Homewood Research Institute


Courtney Ropp, (on leave) MSc

Senior Research Associate

Homewood Research Institute


Chris Viel, HBSc, BA

Research Associate

Homewood Research Institute


Heather Millman, MA

Project Coordinator

Homewood Research Institute


Yao Li, MMath

Data Analyst

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