Behavior is the surface.
Mentalization refers to our ability to understand our own behavior and the behavior of others in terms of underlying mental states—thoughts, feelings, wishes, desires, and intentions.
- thoughts
- feelings
- wishes
- intentions
Advisory · The Clinical Model
men·tal·i·za·tion
noun · psychotherapy
the capacity to understand behavior — our own and others’ — in terms of underlying mental states: needs, desires, feelings, beliefs, goals, and reasons.
This is the clinical model in full—written for clinicians, supervisees, and organizations. Prospective clients may prefer the plain-language overview.
The idea · Reading beneath behavior
What happened is visible.
What it meant is not.
Certainty arrives first.
When mentalizing breaks down—as it often does under stress, trauma, or emotional pressure—we may misinterpret intention, react impulsively, or struggle to understand our own experience.
The mind prioritizes protection and speed over reflection and accuracy: emotion becomes conclusion, then the conclusion is treated as truth.
“Mentalization is the imaginative mental activity that enables us to perceive and interpret human behavior in terms of intentional mental states.”
Fonagy & Bateman
Why it matters
MBT strengthens the capacity to stay curious about behavior—our own and others’—especially when emotion, conflict, or uncertainty makes that curiosity difficult.
Mentalizing does not disappear because you are weak. It narrows because the mind is trying to protect you.Four dimensions · The mentalizing balance
Not a fixed point.
A capacity in motion.
Mentalization moves across four spectrums at once. Select an axis to see what the balance holds—and what certainty sounds like when it slips.Axis 01Balance · movement · recovery
SelfOther
The balance between understanding our own mental states and those of others.
Explore this axis
The balance between understanding our own mental states and those of others. Effective mentalization requires fluency in both directions — being able to reflect on what we ourselves think and feel, while simultaneously remaining curious about the inner lives of others.
In therapy, Kyle works with clients to notice when they become overly focused on one direction at the expense of the other.
When mentalizing holds
“I notice I'm feeling hurt by what she said, and I'm curious about what might be going on for her that led her to say it.”
When certainty closes in
“She obviously said that to hurt me on purpose.”
Axis 02Balance · movement · recovery
AutomaticControlled
Mentalizing operates on a spectrum from fast, intuitive, and implicit — the snap judgments we make about others' intentions — to slow, deliberate, and explicit reflection.
Explore this axis
Mentalizing operates on a spectrum from fast, intuitive, and implicit — the snap judgments we make about others' intentions — to slow, deliberate, and explicit reflection. Both modes are necessary.
Problems arise when automatic mentalizing is consistently inaccurate, as often happens with trauma, or when controlled mentalizing becomes rigid intellectualization that loses touch with emotional reality.
When mentalizing holds
“My gut reaction was that he was being dismissive, but let me think about this more carefully — he might just be distracted today.”
When certainty closes in
“I just know he doesn't respect me.”
Axis 03Balance · movement · recovery
AffectCognition
The balance between emotional knowing and intellectual understanding.
Explore this axis
The balance between emotional knowing and intellectual understanding. Healthy mentalization integrates both — we can think about feelings and feel about thoughts.
When this balance tips, we may over-intellectualize our experience or become overwhelmed by emotion. MBT specifically focuses on helping clients hold both simultaneously.
When mentalizing holds
“I understand intellectually that my anxiety about this meeting is disproportionate, and I can also feel how real and intense that anxiety is right now.”
When certainty closes in
“I know there's nothing to worry about, so I'm fine.”
Axis 04Balance · movement · recovery
InternalExternal
Whether we infer mental states from inner experience — feelings, memories, bodily sensations — or from external cues like facial expressions, tone of voice, and behavior.
Explore this axis
Whether we infer mental states from inner experience — feelings, memories, bodily sensations — or from external cues like facial expressions, tone of voice, and behavior.
Relying too heavily on external cues can lead to misreading social situations based on surface appearances. Relying too heavily on internal cues risks projecting our own states onto others.
When mentalizing holds
“She's smiling, but something about her voice makes me think she might actually be uncomfortable. Let me check in with her.”
When certainty closes in
“He crossed his arms, so he must be angry at me.”
The stance · Mentalization-Based Treatment
Five commitments.
One way of being in the room.
MBT is not a performance of expertise. It is an active, disciplined stance that keeps uncertainty thinkable while emotion is live.Curiosity over certainty
The therapist maintains a stance of genuine curiosity rather than assuming they understand what a client is thinking or feeling.
Read the full commitment
The therapist maintains a stance of genuine curiosity rather than assuming they understand what a client is thinking or feeling. This 'not-knowing' stance invites exploration and signals that the client's inner world is complex, worthy of investigation, and not something to be reduced to simple explanations. Kyle uses open-ended inquiry and gentle challenges to help clients examine their assumptions about themselves and others, creating space for new understanding to emerge.
Focus on the present moment
MBT prioritizes what is happening right now — the feelings, thoughts, and relational dynamics unfolding in the session — over historical narrative or abstract insight.
Read the full commitment
MBT prioritizes what is happening right now — the feelings, thoughts, and relational dynamics unfolding in the session — over historical narrative or abstract insight. This is not because the past is unimportant, but because mentalizing is most accessible and most changeable when grounded in live emotional experience. Sessions often turn on what just happened between therapist and client, using the immediacy of the relationship as a laboratory for understanding relational patterns.
Active engagement
The MBT therapist is not a blank screen.
Read the full commitment
The MBT therapist is not a blank screen. They are honest, transparent about their own reactions when clinically appropriate, and actively engaged in a real human relationship with the client. This authenticity is itself therapeutic — it models healthy mentalizing and offers a corrective relational experience. Kyle's therapeutic style is warm, direct, and engaged; he brings his genuine self to the work while maintaining clear professional boundaries.
Affect focus
Emotions are not just discussed in MBT — they are felt, noticed, named, and explored as they arise in real time.
Read the full commitment
Emotions are not just discussed in MBT — they are felt, noticed, named, and explored as they arise in real time. The therapist helps the client develop greater emotional awareness by drawing attention to shifts in feeling states, exploring what those feelings mean, and building tolerance for emotional complexity. This principle also informs Kyle's professional presentation on enhancing affective and reflective functioning in LGBTQIA+ youth, where emotional dysregulation is a primary concern.
Relational focus
The therapeutic relationship is not merely the context for treatment; it is one of its central vehicles.
Read the full commitment
The therapeutic relationship is not merely the context for treatment; it is one of its central vehicles. How client and therapist relate to each other, the moments of connection and rupture, the assumptions each makes about the other — all of this is material for mentalizing work. This principle connects directly to Kyle's relationship and family therapy, where relational dynamics are the primary focus of treatment.
Clinical applications · Eight contexts
Where reflective capacity
changes the field.
The model is brought to bear wherever emotion, identity, relationship, or threat can narrow the mind’s capacity to hold more than one reading.Application 01
Personality Disorders
MBT was originally developed for Borderline Personality Disorder and remains one of the most evidence-based treatments available.
Read why it applies
MBT was originally developed for Borderline Personality Disorder and remains one of the most evidence-based treatments available. It helps individuals understand the intense emotions, unstable relationships, and identity disturbances characteristic of personality disorders by rebuilding the capacity to mentalize under stress.
Application 02
Self-Harm & Suicidal Ideation
Kyle has co-authored published work on MBT for suicidal and self-injurious youth.
Read why it applies
Kyle has co-authored published work on MBT for suicidal and self-injurious youth. MBT addresses the mentalizing failures that often precede self-harm — moments when emotional pain becomes unbearable and the capacity to reflect on one's own experience collapses.
Application 03
Depression & Anxiety
Depression and anxiety often involve characteristic mentalizing difficulties: rumination, catastrophizing, and difficulty accessing the perspectives of others.
Read why it applies
Depression and anxiety often involve characteristic mentalizing difficulties: rumination, catastrophizing, and difficulty accessing the perspectives of others. MBT helps clients recognize these patterns and develop more balanced, flexible ways of understanding their experience.
Application 04
Interpersonal Difficulties
At its core, mentalizing is a relational capacity.
Read why it applies
At its core, mentalizing is a relational capacity. When we struggle to understand others' intentions, misread social cues, or react defensively in relationships, these are mentalizing difficulties. MBT directly addresses these patterns by helping clients develop curiosity about others' inner worlds.
Application 05
Emotion Regulation
The ability to regulate emotion is closely connected to the capacity to recognize, interpret, and reflect on emotional states — to understand what we are feeling and why, and to respond thoughtfully rather than reactively.
Read why it applies
The ability to regulate emotion is closely connected to the capacity to recognize, interpret, and reflect on emotional states — to understand what we are feeling and why, and to respond thoughtfully rather than reactively. MBT works to strengthen that capacity.
Application 06
Trauma-Related Issues
Trauma disrupts mentalizing capacity, often leaving individuals in non-mentalizing modes: psychic equivalence (feelings equal reality), pretend mode (disconnection from emotional truth), or teleological thinking (only actions count).
Read why it applies
Trauma disrupts mentalizing capacity, often leaving individuals in non-mentalizing modes: psychic equivalence (feelings equal reality), pretend mode (disconnection from emotional truth), or teleological thinking (only actions count). MBT provides a framework for gradually restoring reflective capacity.
Application 07
Adolescent Mental Health
Kyle is certified in MBT for children and adolescents — a specialized adaptation that addresses the unique developmental challenges young people face.
Read why it applies
Kyle is certified in MBT for children and adolescents — a specialized adaptation that addresses the unique developmental challenges young people face. Adolescence is a critical period for mentalizing development, and MBT-A provides age-appropriate interventions.
Application 08
Family System Challenges
When mentalizing breaks down within a family system, patterns of misunderstanding, blame, and emotional reactivity can become entrenched.
Read why it applies
When mentalizing breaks down within a family system, patterns of misunderstanding, blame, and emotional reactivity can become entrenched. MBT for families helps each member develop curiosity about others' perspectives. Kyle's AMBIT training is particularly relevant for complex multi-provider family situations.
The record · Selected work
Research in the room.
Practice in the record.
Kyle’s presentations and published articles on mentalization-based treatment.8
Selected Works
6
Presentations
2
Published Articles
Open the publication folio
Article · October 2018
Basic Concepts in Mentalizing Therapy With Adolescents With Emerging Personality Disorders and Self-Harming Behaviors
with Laurel L. Williams, Owen S. Muir, Efrain Bleiberg, Carlene MacMillan, Chris Grimes, Carl FleisherPresentation · October 2021
The Benefits of Mentalizing in The LGBTQIA+ Community
Presentation · May 2022
Enhancing Affective and Reflective Functioning of LGBTQIA+ Youth
Article · October 2018
Fundamentals in Mentalization-Based Treatment for Suicidal and Self-Injurious Youth
with Laurel L. Williams, Carlene MacMillan, Owen S. Muir, Efrain Bleiberg, Chris Grimes, Carl FleisherPresentation · May 2021
Gender Dysphoria and Mentalization Based Treatment
Presentation · June 2023
A Closer Look at Perceived Rejection: The Impact of Impaired Mentalizing in Gender-Diverse Youth
Presentation · September 2025
Strengthening Reflective Capacity: A Practical Guide to Mentalization-Based Treatment
Presentation · April 2022
Therapeutically Enhancing Masculinity: Approaching Men Through a Positive Lens of Masculine Traits
The model, translated
Bring mentalization
into the room.
For cliniciansClinical supervisionExplore the work →For teams & organizationsSpeaking & trainingExplore the work →
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