Leigh Henderson

PhD., C.Psych.

Leigh received his PhD in Clinical Psychology from Toronto Metropolitan University in 2016. His dissertation research focused on the relationship between religiosity, spirituality, and obsessive-compulsive thought patterns and behaviours. His predoctoral residency was at the Centre for Addiction and Mental Health (CAMH), with rotations in the Mood and Anxiety Ambulatory Service (MAAS) and Work, Stress, and Health (WSH) Clinics. He subsequently remained at CAMH as a staff psychologist in the Work, Stress, and Health Clinic following his predoctoral residency.

Leigh has worked at the Centre for Addiction and Mental Health (CAMH) since 2011 providing assessment and treatment services for individuals experiencing difficulties with PTSD, depression, anxiety, and chronic pain following a workplace accident or incident.  

 Leigh offers psychotherapy for adults struggling with issues including Depression, Anxiety (e.g., social anxiety, panic attacks, phobias, generalized anxiety and worry), chronic pain, Obsessive-Compulsive Disorder (OCD), Posttraumatic Stress Disorder (PTSD), and life transition issues.

Leigh has worked with individuals with OCD with a wide range of presentations. These have included individuals presenting with obsessions and compulsions related to religiosity and scrupulosity, contamination, sexuality, aggression/harm, order/symmetry, perfectionism and “just right” feelings of OCD. When working with individuals with OCD, he will conduct CBT with a focus on ERP interventions. 

Leigh’s approach is to help you reach your goals for your life by first helping you clarify what is most important to you and then working together collaboratively to eliminate barriers to achieving your goals. Working together, therapy will focus on experimentation with various tools and strategies to determine what works best for you and then implementing strategies to help you reach your goals.

Leigh works primarily from a Cognitive-Behavioural and Behavioural foundation and incorporates strategies from Motivational Interviewing (MI) in the overall context of a client-centered approach.

In his leisure time, Leigh enjoys time with his dogs, playing music, travelling, and enjoying the great outdoors.

Leigh Henderson’s practice includes the following services:

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Henderson, L.C., Stewart, K.E., Koerner, N., Rowa, K., McCabe, R.E., & Antony, M.M. (2020). The relationship between religiosity, spirituality, and obsessive-compulsive disorder-related symptoms in clinical and nonclinical samples. Psychology of Religion and Spirituality. Advance online publication. http://dx.doi.org/10.1037/rel0000397

Henderson, L. C., Antony, M. M., & Koerner, N.  (2014). Psychometric properties of the Generalized Anxiety Disorder Inventory in a Canadian sample. Journal of Psychopharmacology, 28, 440–448.