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What Is PACT? The Psychobiological Approach to Couples Therapy — Explained

  • Writer: Erma Kyriakos
    Erma Kyriakos
  • Jun 12
  • 4 min read

If you've been searching for a couples therapist in Sebastopol, CA or anywhere in California and come across the term PACT therapy, here's what it actually means — straight from a PACT-trained LMFT who uses it every day.


Couple in therapy session with PACT therapist in Sebastopol CA — psychobiological approach to couples therapy

PACT has been one of the most useful ways for me to work with couples getting out of repetitive cycles they may be stuck in, and I appreciate the focus of the modality on how to, psychobiologically speaking, find deep understanding, foster empathy, and make lasting changes. Straight from their website, PACT is:

"Developed by Dr. Stan Tatkin, PACT is a fusion of attachment theory, developmental neuroscience, and arousal regulation. PACT has a reputation for effectively treating the most challenging couples."

This means we are dealing with how your nervous systems interact — including the therapist's nervous system — and what else interacts with those nervous systems in the environment (hello politics, world wars, family stressors, etc). PACT is rooted in the science of how our neurotransmitters affect which part of the brain we are functioning from in moments of activation and in moments of centered calmness.


What Does "Psychobiological" Actually Mean?


The term Psychobiological refers to how the brain, mind, and body all interact with each other — each influencing our feeling states and perceptions, our memory and our thoughts. It teaches clients to understand where their triggers and activations come from, whether from current situations or from our family of origin, and how to become more aware of these feeling states and how they show up in the body.


How Does PACT Couples Therapy Work?


It's important to build awareness of our feeling state moment to moment because it gives us more choice of how we want to interact with the situation or person in front of us. When I understand what I am feeling, I have more understanding of what I need. When I pause to make room for the awareness of my being state, I have more choice on how I want to respond, becoming less reactionary. This makes way for more thoughtfulness in our relationships.


Here are some ways PACT works:

  • The therapist provides a container for the couple to work through their issues in real time. Instead of talking about the issue, we experience the issue in sessions.

  • PACT therapy provides moment-to-moment feedback, teaching clients how to tune into body signals, facial expressions, tone, and subtle signals of their partner.

  • There is a deep dive into each partner's family of origin, or genogram, and the couple's origin story — in order to gain insights into each partner's attachment style and blueprint for relationships.


How to Think Like a PACT Therapist: Shared Rules of Governance


Two partners sitting together building shared rules of governance in PACT couples therapy California

One of the main tenets of PACT is to increase the security and safety of the couple. One of the ways couples can do this is by creating some Shared Rules of Governance. When a couple can agree on how they want to behave in the relationship, it helps each partner to do the right thing when the right thing is hard to do. It creates secure functioning — or how I like to say, a more stable "couple bubble." It helps us remember why we are together so we can, say it with me: do the right thing when the right thing is hard to do.


Here are some questions to get you started:


Shared Purpose: Why are we with each other, beyond loving each other? Is it because we want to grow together? For fun? For companionship?

Shared Vision: What are your needs and wants? To have kids? Travel? Where do you want to live? How often do we spend time with family?

Shared Principles of Governance: Take a social justice perspective — what agreements can we make that benefit both of us? For example:

  • We protect each other in public and private

  • We fix and repair disagreements within one hour without defensiveness

  • We consider our own interests and concerns at the same time as considering the other's interests and concerns


Closing

PACT therapy is one of the most powerful tools I've found for helping couples get out of the cycles that keep them stuck — because it doesn't just talk about the problem, it works with the nervous system, the attachment history, and the real-time dynamic between two people in the room. If any of this resonates with how you and your partner experience conflict or disconnection, it might be exactly the approach you've been looking for.


PACT works beautifully as a foundation for couples therapy and is also particularly well-suited to couples intensives — where the extended time allows us to go even deeper into the nervous system work and come out the other side with real tools and a shared roadmap.


Couples therapist Erma Kyriakos LMFT offering PACT therapy in Sebastopol CA and telehealth across California

Ready to Try PACT Couples Therapy in California?


I'm a PACT Level 1 trained LMFT offering couples therapy in Sebastopol, CA and via telehealth across all of California. If you're curious whether PACT therapy is right for you and your partner, the first step is just a free 15-minute conversation.

Want to learn more about how I work before reaching out? Read about my approach here or explore my Couples Intensives — a half-day or full-day deep dive for couples ready to make real progress, faster.

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Erma Kyriakos is a couples therapist providing couples therapy and couples intensives in Sebastopol, California. Erma sees clients across the state of California through telehealth and in-person in Sebastopol, CA. 

©2026 by Erma Kyriakos, LMFT.

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