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Shell, limestone, and lapis lazuli game board, city of Ur, Sumer, circa 2450 BC

The Body Does Not Keep the Score: Trauma, Predictive Coding, and the Restoration of Metastability By Steven Kotler, Michael Mannino, Glenn Fox, Karl Friston For nearly a decade, the idea that "the body keeps the score" has shaped public and clinical understanding of trauma. It is an enticing metaphor-implying that experience is literally inscribed in flesh, that the body bears the scars of what the mind cannot face. Yet recent advances in computational and systems neuroscience reveal that this image, while emotionally compelling, is biologically inaccurate. The body does not store trauma; the brain dynamically reenacts it through maladaptive inference. What endures after trauma is not a memory lodged in tissue but a collapse of flexibility-a loss of metastability, the brain's ability to fluidly switch among semi-stable network states. The traumatic memory is real, but it is entrenched in deep, defensive ravines in the landscape of our beliefs and thoughts.The landscape in question is a free energy landscape where every (Bayesian) belief is equipped with a measure of its plausibility. On this view, making sense of the worldand our bodies -entails a process of (Bayesian) belief updating that can be read as minimizing free energy or, in the vernacular, finding apt explanations for our sensations that are the least surprising, or the most plausible.When trauma strikes, the brain's Bayesian mechanics, as described by the Free Energy Principle and Active Inference -the continuous anticipation and minimization of surprise-can lock into a narrow regime of threat expectation. Functional imaging studies show this concretely: in post-traumatic stress disorder (PTSD), neural networks become hypersynchronous, dominated by recurrent loops between the amygdala, hippocampus, and medial prefrontal cortex. Signal variability drops, connectivity patterns harden, and the brain's dynamic repertoire shrinks.In computational terms, trauma overweights the precision of danger priors: the brain assigns excessive confidence to threat predictions, constraining inference based on the prior premise of enduring and ever present danger. The result is hypervigilance, flashbacks, and avoidance-symptoms of a system caught in self-confirming predictions.

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To restore mental health is therefore not to "release" stored emotion but to reestablish dynamic equilibrium-to recover the brain's ability to move with graceful agility over a landscape of beliefs, commitments and intentions.From this view, trauma is a disorder of prediction, not storage. Predictive coding reframes perception as active inference: the brain does not passively register the world but actively predicts it, adjusting only when errors arise -or acting to resolve such errors. For example, a reflexive movement fulfils the brains predictions that our limbs should be in a particular place; thereby minimizing prediction error (and free energy). However, the brain can also resolve prediction errors by affording them less precision. A process known as sensory attenuation. In trauma, or ability to attenuate sensory precision is lost and prediction errors are mis-weighted. Internal threat expectations dominate the search for -and attention to -sensory evidence of danger; unattenuated interoceptive signals-racing heart, tight chest-are interpreted as confirmation of danger rather than imprecise noise. The "score" the body appears to keep is thus an artifact of circular inference: the brain predicts pain, senses arousal, and takes that arousal as proof that pain persists. The body participates in trauma, but as messenger, not archive. This dynamic interpretation aligns with the broader field of embodied cognition. The body and environment are extensions of the brain's predictive loop, scaffolding thought through action. Yet embodiment is active and transient-it does not imply storage. Trauma-related somatic symptoms are better understood as mis-calibrated feedback between prediction, action, and sensation, not as remnants of the past frozen in muscle or fascia. The distinction matters. Where the storage model leads to metaphors of exorcism-finding and purging what was buried-the inference model leads to training: recalibrating precision, retraining expectations, and expanding the brain's capacity for adaptive variability.A more compelling thesis -for how emotional maps are truly embodied -comes from Antonio Damasio's Somatic Marker Hypothesis (SMH). The central premise of the SMH is that while the body provides the territory for emotion, the "maps" (e.g. the storage and representation of emotional experience) are constructed in the nervous system through distributed processing centers, including visceral, brainstem, and cortical networks.Mechanistically, the re-emergence of a strong feeling -central to the experience of PTSD -can be explained using Damasio's notion of convergence-divergence zones (CDZs) (Damasio, 1989;Meyer & Damasio, 2009). 

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