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Mentalizing, brief, experiential and supportive treatments · Chapter 49
Bateman, Fonagy and later collaborators: mentalizing in treatment and learning from others
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Chapter contents
- From a concept to an organized treatment
- A distinctive use of the here-and-now relationship
- Original fictional scene: a missed meaning, not a debate to win
- Epistemic trust: why information from someone else may not become usable
- The present field is broader than one adult diagnosis
- What changed from earlier theory
- Source and reading notes
From a concept to an organized treatment
Anthony Bateman and Peter Fonagy developed mentalization-based treatment in clinical services for people with borderline personality disorder. MBT is more than a therapist being curious. Assessment, a shared formulation, an intelligible treatment structure, management of risk, coordination of care and trained work with relationships belong to the package. Different adaptations use different settings and durations. A manual's schedule is not a universal prescription for every mentalization-informed conversation. [22] [25]
In plain English: “Let's wonder about minds” becomes a credible treatment only when someone also knows what the appointments are for, what happens in difficulty, and how the team works together.
The not-knowing stance concerns the opacity of minds. It does not mean the therapist has no expertise, cannot make a recommendation, or must accept every explanation. The therapist can have an alternative perspective and offer it as a perspective. This leaves disagreement available without treating the clinician's mind as the answer key.
A distinctive use of the here-and-now relationship
MBT does not discard transference. It approaches present relational experience by examining the actual sequence, the patient's understanding, the therapist's contribution and possible alternative perspectives. In a destabilized moment it generally avoids giving a sweeping historical explanation that the patient cannot yet examine. This is not the claim that genetic interpretations are always harmful or that other dynamic traditions invariably use them too quickly. [22]
The therapist keeps affect and reflection in contact. Too much activation may make thinking collapse. Too little connection with feeling can turn the session into an exercise in psychological vocabulary. A contrary move shifts attention when a habitual imbalance is narrowing the work: from an elaborate account of someone else's motives to one's own immediate feeling, or from overpowering feeling to a small observable event. It is not automatic contradiction. [23]
Original fictional scene: a missed meaning, not a debate to win
The therapist looks briefly at a clock. Samir says, “You cannot wait for me to leave.” The appointment is not ending for another fifteen minutes.
Therapist: You noticed me looking away and it felt as though I wanted this over.
Samir: You did want it over.
Therapist: I was checking how much time remained. That does not tell me how the moment felt from your chair. What were you saying just before I looked?
Samir: That I needed you last week. Then you checked the time.
Therapist: The timing could have made that sound like an unwelcome need. I had not noticed the connection.
Samir: I still think you were uncomfortable.
Therapist: We can keep that possibility open. I want to understand what happened between us without either of us having to settle it immediately.
Later, once he can consider more than one account, they explore how quickly dependence comes to mean burden. The sequence does not require Samir to retract his perception. It also does not require the therapist to confess a motive they do not recognize. The work aims to make different perspectives thinkable within a relationship that matters.
Epistemic trust: why information from someone else may not become usable
Later work by Fonagy, Luyten, Campbell, Nolte, Hutsebaut, Sharp and collaborators expands the question from thinking about minds to social learning. Epistemic trust concerns a person's readiness to take communication as credible, personally relevant and potentially useful beyond the immediate exchange. Mistrust can protect against exploitation but become rigid; credulity can leave a person accepting claims without enough discrimination. The ideal is not maximal trust. [24] [24][25]
In plain English: someone can understand your advice and still experience it as something said to manage them. Another person may believe you too easily. Therapy should not train either person to believe clinicians automatically.
An accurate, particular response may help someone feel recognized as a mind, which may make further learning possible. This is a proposed process account, not proof that an empathic sentence switches on a biological trust mechanism. Learning must generalize beyond the therapist. Otherwise the result might be dependence on one authorized interpreter rather than a wider capacity to learn from life.
The present field is broader than one adult diagnosis
Mentalization approaches have been adapted for adolescents, families, antisocial personality disorder and other settings. Carla Sharp's developmental work and Peter Fonagy and Patrick Luyten's transdiagnostic formulations are important parts of that expansion. Each adaptation requires its own evidence and training; a successful adult BPD trial cannot establish efficacy for every new population. [25] [156]
A 2025 randomized trial of an MBT program for men with antisocial personality disorder on probation provides a specific example of expansion into another service context. It must be read as a study of that program and comparator, not proof that generic curiosity reduces violence. A separate 2025 review of MBT for BPD identified significant methodological limitations in the trial literature. Those findings belong beside the enthusiasm of training institutions. [157] [156]
What changed from earlier theory
The patient is not only someone who lacks an insight that the therapist possesses. The interaction may need to restore the conditions under which an insight could be considered at all. The therapist's manner of arriving at and revising an understanding becomes part of the intervention. This overlaps with relational and developmental traditions but gives it a particular, teachable target.
Practice reflection: in the clock scene, identify the observed act, each person's interpretation, the emotional meaning, and what remains unknown. Then change one fact: the therapist actually has been ending early. Show how your next response changes. Treating justified criticism as failed mentalizing would defeat the purpose of the model.
Source and reading notes
Independent educational synthesis. Fictional conversations illustrate reasoning. Review scopes describe the material consulted; they do not certify all clinical claims.
Mentalization-Based Treatment (opens in a new tab)
Selected sections checked
Selected accessible chapters or article sections reviewed for the cited concepts. This does not indicate a full-book review.
Author paper metadata and selected Therapeutic Stance, The Not-Knowing Stance, and Basic Interventions sections read. No outcome synthesis or full methods appraisal.
Recorded check: 2026-10-14. Source used for this record (opens in a new tab)
Pathway source review: carried forward
inherited-primary-article: Developer-authored treatment account carried from supplied export; reviewed separately in this continuation where noted.
carried-forward; not independently rechecked in finishing pass · Recorded date: 2026-10-16
Scope concerns what was consulted; it is not approval of every claim or author endorsement.
The developers explain mentalizing, the therapeutic stance, and basic clinical interventions.
Open primary text; review limited to specified sections.
About MBT (opens in a new tab)
Official page checked
See the pathway review note for the exact material consulted.
Official description and scope of adult training read. Promotional efficacy wording not used as an independent evidence grade.
Recorded check: 2026-10-16. Source used for this record (opens in a new tab)
Pathway source review: carried forward
official-page: Official description and scope of adult training read. Promotional efficacy wording not used as an independent evidence grade.
carried-forward; not independently rechecked in finishing pass · Recorded date: 2026-10-16
Scope concerns what was consulted; it is not approval of every claim or author endorsement.
Further reading for psychodynamic history, theory and practice.
Access depends on the destination; saving a link does not unlock paid material.
What is mentalizing? (opens in a new tab)
Abstract checked
Abstract or official summary reviewed. Full paper not appraised.
Primary clinical-manual chapter abstract checked: four dimensions, nonmentalizing modes and epistemic trust. Full chapter not read.
Recorded check: 2026-10-16. Source used for this record (opens in a new tab)
Pathway source review: carried forward
abstract: Primary clinical-manual chapter abstract checked: four dimensions, nonmentalizing modes and epistemic trust. Full chapter not read.
carried-forward; not independently rechecked in finishing pass · Recorded date: 2026-10-16
Scope concerns what was consulted; it is not approval of every claim or author endorsement.
Further reading for psychodynamic history, theory and practice.
Access depends on the destination; saving a link does not unlock paid material.
The Role of Epistemic Trust in Mentalization-Based Treatment of Borderline Psychopathology (opens in a new tab)
Review scope recorded
See the pathway review note for the exact material consulted.
Publisher record checked. Theoretical/clinical paper; not a validation of a simple trust score.
Recorded check: 2026-10-16. Source used for this record (opens in a new tab)
Pathway source review: carried forward
bibliographic-record: Publisher record checked. Theoretical/clinical paper; not a validation of a simple trust score.
carried-forward; not independently rechecked in finishing pass · Recorded date: 2026-10-16
Scope concerns what was consulted; it is not approval of every claim or author endorsement.
Further reading for psychodynamic history, theory and practice.
Access depends on the destination; saving a link does not unlock paid material.
Mentalization-Based Therapy for Borderline Personality Disorder: State-Of-The-Science and Future Directions (opens in a new tab)
Abstract checked
Abstract or official summary reviewed. Full paper not appraised.
Primary journal abstract and bibliographic record reviewed on October 15, 2026. Appraisal fields below identify information reported in the abstract and its limits; full methods and results were not appraised in this pass.
Recorded check: 2026-10-15. Source used for this record (opens in a new tab)
Pathway source review: carried forward
abstract: Primary journal abstract and bibliographic record reviewed on October 15, 2026. Appraisal fields below identify information reported in the abstract and its limits; full methods and results were not appraised in this pass.
carried-forward from earlier Learn library; not a new full-text review
Scope concerns what was consulted; it is not approval of every claim or author endorsement.
What does the randomized-trial literature show about MBT for borderline personality disorder?
outcome research
Free article available through the linked record.
Evidence appraisal
- Question
- What does the randomized-trial literature show about MBT for borderline personality disorder?
- Population
- 14 randomized trials identified through April 1, 2025.
- Intervention
- Mentalization-based therapy for BPD.
- Comparator
- Comparison treatments differed across trials.
- Design
- Narrative review of randomized trials, updating the seven trials identified in the 2020 Cochrane review.
- Outcomes
- BPD symptoms, interpersonal functioning and methodological quality.
- Follow-up
- Varied across trials.
- Key results
- Some trials reported improvement in BPD symptoms and interpersonal functioning. The reviewers rated all included trials at high risk of bias. No single pooled treatment effect was reported.
- Limitations
- Predominantly European and female samples; attention, attrition and allegiance bias; incomplete attention to severity, comorbidity and developmental stage.
Mentalisation-based treatment for antisocial personality disorder in males convicted of an offence on community probation in England and Wales (Mentalization for Offending Adult Males, MOAM): a multicentre, assessor-blinded, randomised controlled trial (opens in a new tab)
Abstract checked
Abstract or official summary reviewed. Full paper not appraised.
Primary journal abstract and bibliographic record reviewed on October 15, 2026. Appraisal fields below identify information reported in the abstract and its limits; full methods and results were not appraised in this pass.
Recorded check: 2026-10-15. Source used for this record (opens in a new tab)
Pathway source review: carried forward
abstract: Primary journal abstract and bibliographic record reviewed on October 15, 2026. Appraisal fields below identify information reported in the abstract and its limits; full methods and results were not appraised in this pass.
carried-forward from earlier Learn library; not a new full-text review
Scope concerns what was consulted; it is not approval of every claim or author endorsement.
Can MBT adapted for antisocial personality disorder reduce aggression when added to probation?
outcome research
Free abstract; full article access depends on the publisher.
Evidence appraisal
- Question
- Can MBT adapted for antisocial personality disorder reduce aggression when added to probation?
- Population
- 313 men aged 21 or older with antisocial personality disorder, convictions and elevated aggression, across 13 England/Wales probation sites.
- Intervention
- 12 months of weekly group MBT-ASPD and monthly individual sessions, plus probation.
- Comparator
- Probation as usual.
- Design
- Pragmatic, multicentre, assessor-masked randomized superiority trial.
- Outcomes
- Primary outcome: aggression on the Overt Aggression Scale–Modified at 12 months.
- Follow-up
- Primary endpoint at 12 months; assessments extended to 24 months.
- Key results
- Adjusted difference in aggression at 12 months: −73.5 points (95% CI −113.7 to −33.2), favoring MBT-ASPD plus probation; reported effect size 0.74.
- Limitations
- This tests an adapted program in men under probation, against probation rather than another specialist psychotherapy. Generalization and durability require further study.