Issue 12 · September 2025 · Retrospective edition
Dissociation and EMDR: Can Someone Be “Too Dissociated” for Treatment?
Dissociation is a reason for careful assessment, not a simple yes-or-no verdict about whether someone can benefit from trauma treatment.
Evidence position: PTSD research challenges automatic exclusion; evidence does not establish a single approach for every dissociative disorder.
Editorial description, not a formal GRADE assessment.
Retrospective archive edition prepared September 11, 2026. The month is an issue label, not a historical publication date. Research published after the labeled month may be included.
At a glance
Dissociation should not automatically be treated as proof that someone cannot benefit from trauma-focused therapy. A 2020 meta-analysis combining twenty-one studies and 1,714 patients found no overall relationship between pretreatment dissociation and PTSD psychotherapy outcomes. However, it examined varied PTSD treatments and populations. It did not establish that every person with a dissociative disorder should receive the same EMDR protocol. [1]
The practical answer is therefore neither “always safe” nor “never appropriate.” It is: clarify the experience, assess the needs, and explain how those needs affect treatment.
Ask what the word means in this situation
A person might use “dissociation” to describe feeling far away, emotionally numb, unreal, or disconnected from the conversation. Another may be describing significant gaps in awareness or memory. Those reports need clinical clarification rather than an assumption that they all mean the same thing.
Our communication recommendation is to begin with concrete questions. What does the person notice? How do they know it is happening? What can an observer see? How long does it seem to last? What makes communication easier or harder? The purpose is understanding, not persuading someone to accept a diagnosis from an article.
A clinician should also avoid treating a quiet presentation as automatic evidence that the person is calm. Asking about the client's experience is more informative than assuming that appearance tells the whole story.
What the research changes
The dissociation meta-analysis is useful because it challenges a categorical barrier to PTSD treatment. It does not tell a clinician to ignore disconnection or to treat a research average as a personal safety assessment. Its studies were heterogeneous, and the findings do not transfer automatically to dissociative identity disorder or every severe disturbance in awareness. [1]
Similarly, research comparing an added skills phase with EMDR alone in childhood-abuse-related PTSD questions mandatory extended preparation for all clients. It should not be read as evidence that preparation is unnecessary for an individual whose needs require it. [2]
The shared message is precision: do not deny treatment because of an overly broad rule, and do not offer it without understanding the person in front of you.
What an informed conversation can sound like
The following is a suggested discussion, not a clinical script for managing dissociation. A client might say, “Sometimes I can hear you, but I feel very far away.” A therapist could ask how they would like to communicate that experience and explain how it may change the session plan.
That exchange is more useful than telling the client to push through or assuming the experience proves that processing is working. A reported loss of connection deserves attention in its own right. The client should not have to interpret the reaction perfectly before being allowed to ask for a pause.
For therapists, a useful documentation question is whether the clinical decision is explained in observable terms. “We adjusted the plan because communication became difficult” is more informative than a vague statement that the person was not ready.
Preparation should connect to an identified need
The EMDR treatment structure includes preparation and continuing assessment; it is more than a sequence of stimulation sets. [3]
Our recommendation is to explain the purpose of any proposed preparation. Perhaps the immediate goal is a reliable way to stay in communication, a better understanding of the person's episodes of disconnection, or coordination with a specialist. The explanation should connect the activity to the concern instead of presenting a generic checklist as a test the client must pass.
It should also include a review point. Additional preparation may be appropriate, but “not yet” should not become an indefinite answer with no description of what would allow the plan to change.
When more specialized expertise matters
This article cannot decide whether a specific client needs a specialist or a different level of care. Our recommendation is to ask the treating clinician about their experience with the particular presentation, access to consultation, and limits of their competence.
Someone with significant gaps in awareness or a complex psychiatric history deserves more than confidence in a technique. The care plan may need coordination, further assessment, or referral. Those steps should be explained as efforts to match care to need, not as evidence that the person is beyond help.
A client can reasonably ask, “What would you handle directly, and when would you involve someone else?” A clinician who can answer that question clearly is offering a more transparent plan.
Do not confuse distance with recovery
Consider a hypothetical client who reports little distress about a memory but also feels absent from the room. That pattern should not automatically be counted as successful processing. Equally, a person who remains emotionally present while reporting some distress has not automatically failed.
This is a recommendation about interpretation: look at the quality of engagement, the broader symptom course, and everyday functioning together. One number or one facial expression cannot carry the entire assessment. Reviewing what happened after the appointment may be just as important as reviewing what was said during it.
Bottom line
Dissociation is a clinical consideration, not a universal exclusion criterion. The evidence argues against simple prohibitions while leaving substantial room for individualized judgment. The next useful step is a specific assessment and an understandable plan for communication, pacing, consultation, and review, rather than a promise that everyone should proceed in exactly the same way.
References
- Impact of dissociation on the effectiveness of psychotherapy for post-traumatic stress disorder: meta-analysis. BJPsych Open, 6(3), e53. DOI: 10.1192/bjo.2020.30.
- Phase-based treatment versus immediate trauma-focused treatment for post-traumatic stress disorder due to childhood abuse: randomised clinical trial. BJPsych Open, 7(6), e211. DOI: 10.1192/bjo.2021.1057.
- The Structure of EMDR Therapy: A Guide for the Therapist. Frontiers in Psychology, 12, 660753. DOI: 10.3389/fpsyg.2021.660753.
Related EMDRdot guides
- Am I Ready to Start EMDR?Live guide page with PNG and PDF download options
- Questions to Ask an EMDR TherapistLive guide page with PNG and PDF download options
Educational research summary, not individualized assessment, medical advice, a self-treatment protocol, or a substitute for clinician training. Evidence varies by condition, population, and protocol.