Dr. Terri-Lynn MacKay


I believe that everyone seeks to optimize purpose, connection, and meaning in their life.

Deciding to pursue mental health treatment can be a daunting and overwhelming step. Life is challenging at the best of times, and can present obstacles that are too difficult to navigate on your own. This is where psychological treatment can be helpful. As human beings, we have the ability to think about the past and the future. This ability can lead to negative thoughts and emotions about what has been, and what is to come. Treatment is often effective in providing insights, strategies, and supportive guidance to empower people to a lead more fulfilling life.

What will treatment look like?

We will work together to identify goals for treatment in a compassionate, genuine, non-judgemental atmosphere. Through exploring the issue, we will develop realistic strategies you can implement to make immediate changes. These strategies will help you effectively managing unhelpful thoughts, behaviours, and difficult emotions.

My therapeutic method is flexible and tailored to your individual needs. Based on client need, I use elements of cognitive-behavioural, dialectic, mindfulness, and acceptance-based principles. These treatment methods are backed by scientific research (empirically supported) and provide concrete tools you can use in your everyday life. My approach to therapy is holistic in nature, with the intent of helping people implement better coping strategies and adopt healthier lifestyles.

My background

I have a PhD in clinical psychology from the University of Calgary, and a Masters degree in behavioural neuroscience from the University of Manitoba (U of M). I completed a residency program in the Faculty of Medicine at U of M in the area of health psychology. Most recently, I spent 2 years at the University of Nevada, Las Vegas (UNLV) as a Visiting Assistant Research Professor. At UNLV, I led the development of a Clinical Translational Research Centre in Mental Health and Addiction that is now being launched in the Faculty of Medicine. Prior to moving to the US, I was employed as a psychologist with Alberta Health Services in Calgary, and worked at South Health Campus Hospital and the Calgary Addiction Centre.

In addition to my clinical work, I am an Adjunct Professor at U of M and have served as a sessional instructor and guest lecturer at UBC. I was previously employed as the Senior Research Analyst with the Addiction Foundation of Manitoba where I was responsible for program development and evaluation of Foundation programs. I have been involved in researching the Substance-Related and Addictive Disorders for over a decade and provide advisory consultation to government agencies in the areas of public health and policy. I am active in publishing and my research has been featured in such journals as Canadian Psychology, Neuropsychologia, Computers in Human Behavior, and International Gambling Studies. In addition to my clinical work, I am an Adjunct Professor at the University of British Columbia and the University of Manitoba.

I am a Registered Psychologist in the province of British Columbia.

For more information about me and my services, please consult my website,

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To make an appointment with Dr MacKay, please call Changeways Clinic at 604 871 0490 during office hours, or email us at