What Is Interoception?
Definition
Interoception is the perception of internal bodily states — the sensory system that monitors and integrates signals from the body's organs, muscles, and tissues, providing moment-to-moment information about the body's physiological condition. It is the sense that tells you you are hungry, that your heart rate is increasing, that your muscles are tensed, that something in your chest feels open or closed. Interoception is foundational to emotional experience: research by Antonio Damasio and others has established that emotions are partially constituted by bodily sensation — that the feeling of fear is not only a cognitive assessment but a body-state that the interoceptive system is reading. Trauma significantly disrupts interoception: the body learns to suppress its signals in order to survive, and the person becomes progressively less able to sense what is happening inside.
Origins & Context
Interoception was identified as a distinct sensory modality by physiologist Charles Sherrington in the early 20th century. Contemporary neuroscientific research (A.D. Craig, Antonio Damasio, Lisa Feldman Barrett) has established the insular cortex as the primary brain region processing interoceptive signals and has demonstrated the centrality of interoception to emotional experience, decision-making, and a person's basic sense of self.
In trauma research, Bessel van der Kolk's work on the neuroscience of trauma (The Body Keeps the Score, 2014) established that chronic trauma dysregulates the interoceptive system: traumatized individuals often show reduced insular activation and reduced ability to recognize their own bodily states. This is both a consequence of the body learning to suppress sensation during overwhelming experience, and a perpetuating factor in the trauma's ongoing effects.
Interoception is the body talking. Trauma is the history of learning not to listen. Healing is the slow, patient practice of turning back toward the conversation.— Nikita Datar
How It Shows Up
Disrupted interoception shows up as the person who doesn't know they are hungry until they are ravenous, who doesn't know they are angry until they explode, who doesn't know they are exhausted until they collapse. The internal signals are there — the body is sending them — but the pathway between sensation and awareness has been disrupted.
It shows up as the inability to locate emotion in the body — the person who knows intellectually that something upset them but cannot feel where. The therapist asks 'where do you feel that in your body?' and there is a genuine blank. Not performance. Not resistance. The signals are simply not being received.
Restoring interoception is a central goal of somatic healing work: teaching the nervous system that it is safe to attend to body signals, building the capacity to notice sensation before it reaches the threshold of overwhelm, and gradually expanding the range of bodily states that can be experienced with awareness rather than either suppressed or flooded.
Nikita's Note
Rebuilding interoception was the quietest and most foundational piece of my healing work. Not dramatic. Not cathartic. Just: noticing. What does my body feel right now? Where is the tension? Is there warmth anywhere? What is the quality of my breath?
These questions seem trivial. They are not. They are the beginning of the conversation between mind and body that trauma interrupted — and the conversation, resumed carefully and consistently, is what makes all the other work possible.
You cannot process emotion you cannot feel. You cannot understand your nervous system's signals if you have learned to silence them. The recovery of interoception — the return of sensation as information rather than threat — is the return of the body as a home. And that homecoming changes everything else.
Related Concepts
If this resonates, the book that lives here is You Are the Love You Seek.