Constricted Processing in EMDR: Understanding EMD, EMDr, and When to Use Each

Read Time: 7 Minutes

There is a moment many EMDR therapists know well. You have a client with a long, layered trauma history. You know reprocessing could help. And you hesitate, because you have seen what happens when a single target opens up an entire memory network: flooding, dissociation, a client who leaves session worse than they arrived.

For a long time, the field offered two answers to that moment. Stay in preparation longer, or push through and hope the client can tolerate it. Constricted processing offers a third: reprocess, and control how wide the processing is allowed to go.

What Is Constricted Processing?

Constricted processing refers to a set of EMDR strategies that deliberately narrow the focus of reprocessing to contain activation. Instead of following every associative channel wherever it leads, the clinician limits associations and returns to the target more frequently, which reduces the amount of material the client's nervous system has to hold at once.

The idea is older than it sounds. EMD, the original eye movement desensitization procedure Francine Shapiro described before EMDR became an eight-phase psychotherapy, was itself a narrow, target-focused procedure (Shapiro, 2018). Clinicians and researchers, including Hase (2021), have since described EMD, EMDr, and full EMDR as points on a continuum of processing, from most constricted to most open.

The most useful way to think about that continuum is not as three separate protocols. It is a set of choice points. The question is never which one you are loyal to. The question is how much processing this client, in this session, can use well.

EMD: The Narrowest Focus

EMD keeps the work locked onto a single target. Sets of bilateral stimulation are typically shorter, and after every set, the clinician brings the client back to the original experience and checks the SUDS rating. Associations are not followed. If the client's mind starts to travel to related memories, the clinician gently returns them to the target.

That return-and-check rhythm does two things. It keeps activation contained to one memory or trigger, and it gives both of you a running read on whether disturbance is actually decreasing. For clients whose systems flood quickly, that structure can be the difference between processing and drowning.

EMD tends to fit best with discrete, specific material: a single intrusive image, a recurring nightmare, a trigger like a certain sound or place, or the worst part of an event when the full memory would be too much.

EMDr: The Middle of the Continuum

EMDr loosens the frame without removing it. Some associations are allowed, and desensitization stays organized around the target. When the material a client reports still relates to the issue being worked on, the clinician continues. When channels emerge that have nothing to do with the target, the clinician redirects back to the original experience rather than following them.

In practice, EMDr often feels like ordinary EMDR with a slightly firmer hand on the wheel. The client gets the benefit of associative processing, which is where much of EMDR's power lives, while the clinician keeps the session from sprawling into networks the treatment plan has not accounted for yet.

Full EMDR: Open Processing

Full EMDR follows the standard protocol: associations are followed, channels are cleared, and the client's own processing leads the way. For many clients, this is exactly right. Nothing about constricted processing implies that full reprocessing is dangerous or outdated. It remains the default for clients whose window of tolerance can hold it.

The clinical skill is knowing when that default fits and when it does not, and being willing to move along the continuum in either direction as the session unfolds.

When to Constrict

There is no formula, but several presentations tend to call for a narrower frame:

• Complex PTSD presentations, where disturbances in self-organization and dense memory networks raise the risk that one target activates many (Fung et al., 2023)
• Significant dissociation, where open processing can outpace the client's ability to stay present
• Single destabilizing symptoms, like a flashback or nightmare that is wrecking sleep and functioning right now
• Anticipatory anxiety about a specific upcoming event, where a focused piece of work serves the client faster than a full history-driven plan
• Early reprocessing with a client whose capacity you are still learning, where a contained first experience builds trust in the method

Constriction is also a real-time decision, not just a planning one. A session that begins as full EMDR can narrow to EMDr when material starts to sprawl, and narrow again to EMD if activation climbs toward the edge of what the client can integrate.

What Constricted Processing Does Not Replace

A narrower protocol is not a substitute for a treatment plan. Choosing EMD over full EMDR does not answer the harder questions with complex presentations: which symptom to address first, which triggers to target, in what order, and how to read the results afterward. Constricted processing is one tool inside a sequenced, symptom-focused approach, and it works best when the plan around it is sound.

That planning piece, deciding where to start when a client presents with a dozen competing symptoms, is its own clinical skill. It is also where many well-trained EMDR therapists feel least equipped, which is worth naming without shame: most basic trainings simply do not cover it in depth. If that describes your experience with complex PTSD cases, the problem is your training history, and training histories can be updated.

Frequently Asked Questions

What is the difference between EMD and EMDr?

EMD keeps processing locked onto a single target, with no associations and a return to target after every set. EMDr allows some associations while keeping desensitization focused on the target, redirecting when unrelated material emerges. EMD is the most constricted option; EMDr sits between EMD and full EMDR.

Is constricted processing evidence based?

EMD is the original procedure from which EMDR developed, and the continuum of EMD, EMDr, and EMDR has been described in the clinical literature as a way to match processing to client capacity. Research on EMDR for complex presentations supports adapting reprocessing to reduce the risk of overwhelm.

When should I use constricted processing instead of full EMDR?

Consider constricting when a client floods or dissociates quickly, when a single symptom is destabilizing daily life, when memory networks are dense and layered, or when you are still learning a client's capacity. Full EMDR remains the default when the client's window of tolerance can hold open processing.

Do I need special training to use EMD or EMDr?

You need to be an EMDR-trained clinician first. From there, advanced training helps you use these strategies as deliberate choice points inside a treatment plan, including when to narrow, when to open back up, and how to sequence targets so constricted work adds up to real change.

References

_{Fung, H. W., Chien, W. T., Lam, S. K. K., & Ross, C. A. (2023). The relationship between dissociation and complex post-traumatic stress disorder: A scoping review. Trauma, Violence, & Abuse, 24(5), 2966-2982. [ADD DOI LINK]}

_{Hase, M. (2021). The structure of EMDR therapy: A guide for the therapist. Frontiers in Psychology, 12. [VERIFY CITATION + ADD DOI LINK]}

_{Shapiro, F. (2018). Eye movement desensitization and reprocessing (EMDR) therapy: Basic principles, protocols, and procedures (3rd ed.). Guilford Press.}