The Vital Role of Interoception by Tracy Jarvis

When we talk about trauma, we often focus on memory, attachment, and meaning.

But underneath all of it is interoception, the ongoing perception of signals arising from within the body: heart rate, breath, muscle tension, gut sensation, temperature shifts, subtle visceral cues. These signals form much of the raw material from which emotion is constructed.

Emotion is not just a story or a cognition. It is a patterned interpretation of bodily change.

From a trauma-informed and parts-oriented perspective, this becomes especially important:

• Some parts amplify internal signals, scanning intensely for cues of danger

• Some dampen or mute sensation to prevent overwhelm

• Some organize perception around learned expectations, so the body feels what it has historically needed to feel in order to survive

In this way, interoception is not merely "accurate" or "inaccurate." It is adaptive. It reflects learning. The nervous system predicts what sensations mean based on prior experience, particularly relational and traumatic experience, and those predictions shape what is consciously felt.

This has several clinical implications:

1 Prediction shapes perception. Clients often experience what their system anticipates rather than what is strictly occurring physiologically. A slight increase in heart rate may be experienced as panic, excitement, shame, or threat, depending on context and parts activation.

2 Attention is not the same as attunement. Simply directing attention toward the body does not automatically increase regulation. For trauma survivors, unstructured attention can intensify protective activation. Regulated interoceptive awareness requires pacing, safety, and sufficient Self-leadership.

3 Signal and noise are learned categories. What one part experiences as intolerable noise (e.g., visceral activation), another part may need to access as a meaningful signal. Helping parts differentiate these layers is often more useful than increasing raw sensation.

4 Embodiment is relational. The capacity to stay with internal sensation develops within safety. Without relational support, internally and externally, turning toward the body can feel exposing rather than regulating

When we understand interoception as a dynamic learning system shaped by trauma, attachment, and protective organization, we move beyond simplistic models of "disconnect" and instead work with how the system has intelligently adapted.

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Tracy Jarvis is a British psychotherapist and a trainer of Sensorimotor Psychotherapy. 

www.tracyjarvis.net 

email: info@sensorimotor.org