Ketamine and Therapy: Why the Two Belong Together
We are told to be in the moment. To be present. The trouble is that the moment never sits still. No sooner are you in it than another one arrives, and then another, and most of us spend our days being carried along inside them rather than watching them pass. Mindfulness and meditation train us to step back and observe instead. It is real work, and one of the reasons it is difficult is that the brain keeps pulling us back into our usual way of seeing things.
Ketamine assisted psychotherapy, or KAP, offers a small window into what loosening that grip can feel like. It is increasingly being used for treatment resistant depression and is also being explored for anxiety, PTSD, and several other conditions where traditional approaches have hit a ceiling. But one question I sometimes hear is, “Why does the therapy component matter so much? Can the medicine not do the work on its own?”
The answer has everything to do with how the brain actually changes.
Your Brain Has a Default Setting
The brain has a network whose whole job is to keep you feeling like you. It maintains your sense of self, your internal narrative, and your habitual ways of seeing yourself and the world around you. It is called the default mode network, and for most people it is pretty dominant. This is why our patterns, our defenses, and our deeply held beliefs about who we are and what we deserve tend to feel so fixed and so hard to shift, even when we consciously want them to.
Think about how hard it is to genuinely change a long held belief about yourself, not just intellectually but in a felt way. That difficulty is not a personal failing. It is your brain doing exactly what it was designed to do: maintaining stability and consistency in how you understand yourself and your experiences.
The problem is that stable and accurate are not the same thing. Many of the beliefs and patterns running underneath our daily lives were formed during difficult or overwhelming moments, often in childhood, before we had the resources to make sense of what was happening. Over time, the brain adapted around those experiences, and those patterns became deeply reinforced and automatic.
What Ketamine Actually Does
Ketamine temporarily quiets connectivity within the brain’s default mode network. This matters because in depression that network often becomes overactive, which is part of what keeps rumination and self-criticism running on a loop. When it settles, something remarkable can happen. The usual rigidity of our habitual thought patterns can soften. The brain becomes open in a way it genuinely is not during ordinary waking life, more receptive to new experiences, new perspectives, and new ways of relating to itself.
Many people describe the experience in ways that reflect this shift. The inner critic becomes quieter, habitual mental loops settle, and there is a felt sense of spaciousness that can be genuinely unfamiliar. For someone who has lived with chronic depression, rumination, or self criticism, that quiet can feel like relief in a way that is hard to even put into words.
Neuroimaging research supports some of what clients describe. Studies show that ketamine lowers connectivity within the default mode network, changes that researchers believe may help explain the greater openness and flexibility people report. This period also appears to involve a window of heightened neuroplasticity, the brain’s capacity to form new connections. The science is still early, but for a stretch of time after a session, the brain may be more open to change than usual.
Why the Therapy Component Is Essential
This is where the therapeutic work becomes essential, and where ketamine assisted psychotherapy differs meaningfully from ketamine infusions alone.
That window of openness is an opportunity, but it does not do the work on its own. The default mode network will return to its usual activity. The question is what happens in the time between. If the experience is not met with skilled therapeutic support, the window can close without much having changed at a deeper level. The relief may have been real, but the underlying patterns, the beliefs, the emotional learning, the places where the old self concept lives, remain largely untouched.
With skilled therapeutic support, that same window becomes something different. What surfaces during the experience can be received, explored, and integrated. New experiences of yourself and of the world, ones that contradict old painful beliefs, can actually land in a way they often cannot during ordinary consciousness.
The goal is not simply to feel different for a few hours. It is to help the brain pair that temporary openness with new emotional experiences that can begin reshaping long standing patterns.
This is what allows the temporary shift to become something more lasting.
In my work, I bring the same depth oriented approaches I use in individual and couples therapy into the KAP space. The goal is never symptom management alone. It is to help the deeper emotional learning, the places where the old map of the world still lives, actually update. Ketamine creates conditions for that kind of change that may be hard to access otherwise. The therapeutic work is what you do with those conditions once you are inside them.
A Note on What This Is and Is Not
Ketamine assisted psychotherapy is not a magic solution, and it is not right for everyone. But for people who have done years of good therapeutic work and still feel stuck, or who have tried multiple approaches without lasting relief, it represents something genuinely new: a way of accessing the brain’s own capacity for change that we have not had before.
This is exactly the kind of development that keeps me endlessly curious about the brain and what becomes possible when we work with it instead of against it.
Reference
Scheidegger, M., et al. (2012). Ketamine decreases resting state functional network connectivity in healthy subjects: Implications for antidepressant drug action. https://doi.org/10.1371/journal.pone.0044799
Vasavada, M. M., et al. (2023). Rapid neuroplasticity changes and response to intravenous ketamine: A randomized controlled trial in treatment-resistant depression. Translational Psychiatry, 13, 151. https://doi.org/10.1038/s41398-023-02451-0
Mathai, D. S., Mora, V., & Garcia-Romeu, A. (2022). Toward synergies of ketamine and psychotherapy. Frontiers in Psychology, 13, 868103. https://doi.org/10.3389/fpsyg.2022.868103
