Eye movement desensitization and reprocessing (EMDR) is a structured, evidence-based psychotherapy that helps the brain reprocess distressing memories so they lose their emotional charge. Francine Shapiro developed it in the late 1980s. The World Health Organization, the American Psychological Association, and Health Canada all recognize EMDR as an effective treatment for PTSD and a range of related conditions.
Trauma is not purely a psychological event. It is neurological. When the brain fails to process a distressing memory the way it would an ordinary one, that memory becomes frozen, stored with its original images, emotions, and physical sensations intact. Years later, everyday cues can pull a person back into the emotional state of something long past.
EMDR uses guided bilateral stimulation to engage the brain’s natural adaptive information processing system. The stuck memory gets processed and integrated. The person can recall what happened without reliving the intensity of the original experience.
Bilateral stimulation sets EMDR apart from talk-based therapies. A clinician directs the client’s attention to an external stimulus, most commonly horizontal eye movements, though auditory tones and gentle tactile taps are also used, while the client holds a distressing image or belief in mind. Researchers believe this dual-attention process mimics REM sleep, during which the brain consolidates and integrates emotional memories. Across more than three decades of randomized controlled trials, EMDR has produced outcomes that rival or exceed those of leading trauma-focused cognitive behavioural therapy protocols.
What Symptoms and Conditions EMDR Can Treat Beyond PTSD
EMDR treats generalized anxiety disorder, panic disorder, phobias, depression, grief, chronic pain, and obsessive-compulsive presentations. Its application extends well beyond the PTSD context where it was first developed. Adults who lived through adverse childhood experiences often carry unprocessed distress that surfaces as low self-worth, relational difficulty, or persistent physical symptoms. EMDR targets those roots directly.
A 2019 meta-analysis published in Psychological Medicine found that EMDR produces significant reductions in depression symptoms, particularly when depressive episodes are rooted in adverse life experiences. For anxiety, EMDR desensitizes the specific memories and beliefs driving hypervigilance. Clients often describe the relief as qualitatively different from symptom management. The fear doesn’t become more manageable; it genuinely diminishes.
EMDR directly targets the memory networks that generate nightmares and intrusive imagery. Because it works at the level of stored memory rather than conscious thought, clients frequently report that nightmares decrease or resolve entirely within the first several sessions, often before all aspects of the traumatic material have been fully processed.
Complex and Developmental Trauma
Complex and developmental trauma, distress arising from prolonged adverse experiences in childhood rather than a single incident, responds to EMDR, though treatment requires more preparation before active reprocessing begins. Snyder Psychology builds a thorough clinical formulation before identifying trauma targets and sequencing treatment. That structured formulation determines the pace and order of the work.
How Long Does EMDR Treatment Take? Setting Realistic Expectations
Three variables determine session count: the nature of the traumatic material (single-incident versus complex or repeated trauma), the client’s current level of emotional stability, and how much preparatory work is required before active reprocessing can begin.
Single-incident PTSD responds to six to twelve sessions for many adults. Complex trauma histories, including developmental or relational trauma, require longer treatment, typically ranging from twenty to fifty sessions or more.
EMDR treatment follows a three-pronged protocol: past memories feeding current distress, present triggers activating those memories, and future templates for healthy responses. Clinicians work through each prong systematically. A client with a single traumatic event and strong emotional resources may move through all three relatively quickly. A client whose distress is rooted in years of adverse childhood experiences will spend more time in the preparation phase before active reprocessing begins.
Sessions run fifty to ninety minutes. Longer sessions are preferred during active reprocessing because they allow a trauma target to be fully desensitized and closed within a single appointment. A qualified clinician should provide an estimated range after a thorough intake assessment.
EMDR vs Cognitive Behavioural Therapy and Which Approach Fits Your Symptoms
Both EMDR and cognitive behavioural therapy (CBT) are first-line, evidence-based treatments for trauma and anxiety. Choosing between them depends on the nature of the presenting problem, the client’s learning style, and whether the distress has identifiable memory roots.
CBT uses conscious cognitive restructuring, identifying and challenging distorted thoughts, and behavioural interventions such as exposure hierarchies. EMDR uses bilateral stimulation-assisted memory reprocessing and does not require the client to extensively verbalize or analyze traumatic content. For clients who find talking about trauma re-traumatizing, EMDR offers a direct pathway that doesn’t depend on verbal articulation.
A landmark study published in the Journal of Clinical Psychiatry found that EMDR requires fewer sessions than trauma-focused CBT to achieve equivalent PTSD symptom reduction. EMDR also generalizes: processing one traumatic memory reduces distress across related memories that share the same negative core belief, an effect that can accelerate overall treatment.
When the Two Approaches Work Together
EMDR and CBT are not mutually exclusive. Many clinicians trained in both modalities apply CBT-based psychoeducation and skills during the stabilization phase of EMDR, then shift to active reprocessing once the client has the emotional regulation tools to work safely with distressing material. This combined structure produces durable outcomes for clients managing significant anxiety, depression, or skill deficits.
Clients who are goal-focused and respond well to structured homework may find CBT’s framework motivating. Clients whose distress feels body-based, fragmented, or resistant to cognitive reframing despite genuine effort are often the strongest candidates for EMDR. A thorough intake assessment determines which approach, or which combination, fits a specific presentation.
Your First EMDR Appointment and What the Process Looks Like
A first EMDR appointment does not begin with bilateral stimulation. The initial session, and often several that follow, focuses on history-taking, clinical formulation, and building the therapeutic relationship. A clinician gathers information about current symptoms, significant life experiences, relational history, and treatment goals. EMDR targets are identified from a clear understanding of which past experiences are driving current distress.
The clinician introduces stabilization and resourcing skills before any reprocessing begins. Clients learn grounding techniques, safe-place visualizations, and containment strategies. These skills manage distress that arises between sessions and form the foundation that determines how safely active reprocessing will proceed.
What Happens During Active Reprocessing
Active reprocessing typically begins in the third or fourth session for clients with strong emotional resources. The clinician asks the client to bring a specific memory or image to mind, identify the negative belief associated with it (for example, “I am powerless” or “I am not safe”), and rate current distress on a zero-to-ten scale. The clinician initiates sets of bilateral stimulation while the client allows their mind to move freely through whatever thoughts, emotions, images, or body sensations arise. The brain leads the process.
The clinician closes each reprocessing session with a structured return to baseline using the stabilization tools from earlier sessions. Processing continues between appointments as the brain integrates the material. Knowing what to expect, including vivid dreams, unexpected emotional releases, or a surprising sense of calm, helps clients engage with the process more fully.
Finding Qualified EMDR Therapy in Calgary and What to Ask
More Calgary practitioners offer EMDR than a decade ago, though training quality and clinical rigour vary significantly. EMDRIA sets the international training standard for EMDR. Basic certification requires at least forty hours of accredited training, including supervised practice. The EMDRIA Certified Therapist designation requires an additional twenty hours of consultation and demonstrated competency through a structured review. When evaluating providers, asking about training body, certification level, and supervised hours is a reasonable starting point.
Costs and Coverage in Alberta
Registered psychologists in Alberta charge between $200 and $275 per fifty-minute session. Registered provisional psychologists and registered social workers offer lower rates. Many Alberta extended health benefit plans cover psychology services, though some specify coverage for registered psychologists specifically. Confirming coverage limits, eligible provider types, and whether direct billing is available before beginning treatment can significantly reduce out-of-pocket costs.
Snyder Psychology is a Calgary-based clinic offering structured, evidence-based EMDR therapy built around thorough clinical formulation. Their eye movement desensitization and reprocessing therapy page covers the assessment process, session structure, and what to expect at each stage of treatment.
Before booking with any provider, a few questions are worth asking: Does the clinician complete a full intake assessment before beginning reprocessing? How do they handle clients who become destabilized between sessions? Do they integrate EMDR into a broader treatment plan, or apply it as a standalone technique? The answers reveal whether a provider is working from a structured clinical framework, and that distinction meaningfully affects both safety and outcomes.
Alberta has seen significant growth in trauma-informed care over the past decade, with more clinicians across Calgary and the province pursuing advanced EMDR training. For adults who have spent years managing symptoms without addressing their root causes, that growing expertise is worth finding.

