What is Interoception?
Ask a child whether they are hungry, and many will say no, then eat ravenously the moment food is placed in front of them. Ask a child who is visibly upset whether they feel sad, and they may genuinely report feeling fine. Ask a teenager why they exploded with anger twenty minutes ago, and they may have no coherent account, not because they are withholding, but because they truly did not notice the build-up of tension in their body before it reached crisis point. Each of these moments points to the same underlying capacity: the ability to sense and interpret signals from inside the body. That capacity is called interoception, and it is one of the most foundational, and least well-known, sensory systems in human development.
Interoception is the sense of the body's internal state. Where the external senses (sight, hearing, touch, smell, taste) register information from the world outside the skin, interoception registers information from within: heartbeat, breathing, temperature, pain, hunger, thirst, bladder fullness, nausea, muscle tension, and the diffuse felt sense of emotional states. It is processed primarily through a network of neural pathways running from the body's organs through the spinal cord to the insular cortex, a region deep in the cerebral cortex that neuroscientists have identified as the brain's primary interoceptive processing hub.
Interoception matters to everyone who works with children because it is the foundational layer beneath emotional literacy, self-regulation, and self-care. A child cannot reliably name or manage an emotion they cannot first feel in their body. A child who does not register hunger signals reliably will not ask for food. A child who cannot sense their own rising arousal, the tightening chest, the quickening heartbeat, the clenching jaw, has no early warning system for dysregulation, and is likely to move from baseline to crisis without the intermediate steps that make intervention possible. Interoceptive awareness is not a luxury add-on to emotional development; it is the sensory substrate on which emotional literacy is built.
Interoceptive differences are particularly prevalent among autistic children and young people, many of whom experience significant difficulty detecting and interpreting their own internal body signals, a profile that researchers have linked to alexithymia (difficulty identifying and describing emotional states), difficulties with hunger and satiety recognition, and challenges with personal care and self-monitoring more broadly. But interoceptive differences are not limited to neurodivergent populations: children with trauma histories, anxiety, and even typical development can all show significant variation in interoceptive accuracy and awareness.
Origins & History
The concept of interoception has a long history in neuroscience and physiology, though its developmental significance has only come into sharp focus in recent decades. The word itself was coined by the British neurophysiologist Charles Sherrington in the early twentieth century, as part of his broader taxonomy of sensory systems. Sherrington distinguished between exteroceptors (sensory receptors responding to the external environment), proprioceptors (receptors in muscles, joints, and tendons responding to body position and movement), and interoceptors (receptors in the visceral organs responding to internal bodily states). His 1906 Nobel Prize-winning work laid the neuroanatomical groundwork, but interoception remained a relatively peripheral concept in clinical and developmental research for most of the twentieth century.
The decisive shift came through the neuroscientific work of A.D. (Bud) Craig, whose research in the late 1990s and 2000s mapped the neural pathways carrying interoceptive information from the body's organs to the insular cortex with unprecedented precision. Craig's landmark 2002 paper in Nature Reviews Neuroscience reframed interoception not merely as a background monitoring system but as the neurological basis for the subjective sense of the body as one's own, what he called the "material me." In Craig's framework, the insular cortex does not merely receive body signals; it generates the felt experience of being in a body: the sense of warmth, of aliveness, of physical self. This was a profound reconceptualisation: interoception, in Craig's account, is the neurological foundation of subjective experience itself.
Antonio Damasio's influential work on the somatic marker hypothesis, developed through the 1990s and summarised in The Feeling of What Happens (1999), provided a parallel and complementary account: that emotional states are, at their core, representations of body states, and that the brain's capacity to sense and simulate body states is the biological substrate of consciousness, decision-making, and self-awareness. Together, Craig and Damasio established the theoretical basis for understanding interoception as central, not peripheral, to human psychological life.
The application of interoception research to children's development and education has been led significantly by occupational therapist Kelly Mahler, whose Interoception Curriculum, developed in the 2010s and widely used in schools internationally, provides a structured, practical framework for teaching interoceptive awareness as a foundational skill. Mahler's work has been particularly influential in autism education and occupational therapy, where the overlap between interoceptive differences and the regulation difficulties common in autistic children has brought the concept into mainstream practice. For a fuller discussion of the sensory processing context, see the dedicated article on Sensory Processing on this site.
The Evidence Base
Research on interoception across child and adolescent development has accelerated considerably in the past decade, producing a picture that is clinically important for anyone working with children's regulation and wellbeing.
Studies by Sarah Garfinkel and colleagues at the University of Sussex have established that interoceptive accuracy, typically measured by asking participants to count their own heartbeat without feeling their pulse, is a reliable and meaningful index of individual differences in body awareness, and that it predicts a range of psychological outcomes. Higher interoceptive accuracy is associated with better emotional awareness, more effective regulation, and lower anxiety; lower interoceptive accuracy is associated with greater difficulty identifying one's own emotional states (alexithymia) and poorer regulation. Garfinkel's work has also documented the developmental trajectory of interoceptive accuracy, finding that it improves across childhood and adolescence, but with substantial individual variation that is not explained by age alone.
The relationship between interoception and alexithymia, difficulty identifying and describing emotional states, has been extensively documented by research groups including those led by Geoffrey Bird and Punit Shah. Their work has shown that alexithymia, which occurs at elevated rates in autistic populations (estimated at 50% compared to around 10% in the general population), is closely linked to interoceptive difficulties: individuals who struggle to detect their own body signals are, predictably, less able to recognise the bodily basis of their emotional states. Crucially, Bird and Shah's research suggests that many of the social and emotional difficulties attributed to autism itself may in fact be partly attributable to alexithymia, which is an interoceptive problem, not a social cognition problem. This distinction matters for intervention: supporting interoceptive awareness may be more useful for some autistic children than social skills training, which addresses the wrong level of the system.
Kelly Mahler's clinical and educational research on the Interoception Curriculum has produced promising outcome data across multiple school-based studies. Participants in structured interoceptive awareness programmes showed improvements in their ability to identify body signals, connect those signals to emotional states, and use that awareness in real-time regulation, with gains sustained at follow-up. The programme is particularly notable for its developmental appropriateness: it begins at the level of noticing physical body signals in low-stakes contexts (noticing what happens in the body when jumping, when cold, when needing the toilet) before progressing to the more complex and emotionally loaded territory of feeling states and regulation strategies.
For children with trauma histories, research by Bessel van der Kolk and Peter Levine has documented how trauma disrupts interoceptive processing: either overwhelming the body with sensory signals (hyperarousal) or shutting them down entirely (dissociation and numbing). The traumatised child who reports feeling "nothing" in response to events that are clearly affecting their behaviour is not lying; their interoceptive system has, as an adaptive response to overwhelming experience, reduced or distorted the signal. Trauma-sensitive approaches to interoceptive work must proceed very gently and with significant relational support.
Practical Application
Building interoceptive awareness in children requires a bottom-up, graduated approach, starting with safe, neutral body sensations before moving toward the more emotionally loaded territory of feelings and regulation. It is patient work, but its downstream effects on self-regulation, emotional literacy, and self-care are substantial.
Start with the body, not the feeling
The most common mistake in interoceptive education is beginning with the emotional layer ("How are you feeling?") before the child has developed reliable access to the physical layer underneath it. Kelly Mahler's Interoception Curriculum begins instead with simple, low-stakes physical sensations: "What does your body feel like when you are jumping? When your hands are cold? When you need the toilet?" These questions build the habit of turning attention inward and noticing body signals in contexts where the signals are clear, non-threatening, and not emotionally loaded. For younger children (ages 5–10), this is best done through movement-based activities, jumping, stretching, holding ice, paired with simple check-in questions: "What do you notice inside your body right now?" Visual body maps, on which children can mark where they feel sensations, provide a concrete scaffold for what is otherwise an entirely abstract and internal process.
For adolescents (ages 11–18), the framing matters considerably. Interoceptive awareness is most readily received when presented as a performance and self-knowledge tool, the same kind of body awareness that athletes, musicians, and high-performers cultivate deliberately. Questions like "where do you feel stress in your body?" or "what does your body do when you're about to hit a wall?" invite interoceptive attention in terms that feel purposeful and age-appropriate rather than therapeutic or infantilising.
Build body check-in as a routine practice
Interoceptive awareness develops through repetition: through the regular habit of turning attention inward at low-stakes moments so that the skill is available at high-stakes ones. Brief body check-ins, incorporated into the structure of the day, build this habit without requiring special time or resources. A transition check-in at the start of a school session ("Before we begin, take one breath and notice: what's one thing your body is telling you right now?") normalises interoceptive attention as part of daily life. For children who find this abstract, a simple traffic-light body rating (green: body feels settled; yellow: body feels a bit activated; red: body feels flooded) provides a concrete vocabulary for an internal experience that is otherwise difficult to communicate. These check-ins serve a dual purpose: they build interoceptive skill over time, and they give adults a real-time window into children's regulatory states that enables proactive rather than reactive support.
Connect body signals to actions: the regulation bridge
The goal of interoceptive awareness is not awareness for its own sake but the capacity to use body signals as information that guides action. The key bridge is explicit: "When I notice [this body signal], that means [this internal state], and I can do [this] to help myself." For a younger child: "When I notice my heart beating fast and my fists clenching, that's my body telling me I'm getting angry, and I can go squeeze the sensory ball." For an adolescent: "When I notice my shoulders getting tight and my thinking getting narrow, that's my early warning signal that I'm heading into overload, and I need to leave the situation before it escalates." Building these personalised body-signal maps, which must be developed collaboratively with the child rather than imposed, gives them an internal regulation toolkit that is genuinely theirs.
Approach with particular care for trauma-affected children
For children with significant trauma histories, interoceptive work requires careful attunement and relational safety. Turning attention toward internal body signals can be genuinely destabilising for a child whose body has been the site of overwhelming experience, the internal landscape may feel dangerous rather than informative. In these cases, interoceptive work should only be attempted within a well-established therapeutic or relational framework, beginning with external sensory experiences (what I can feel on the outside of my body) before moving inward, and always with a clear co-regulatory presence available. This is not work to be rushed. The development of a safe interoceptive relationship with one's own body is, for many trauma-affected children, a long and significant journey, but it is one of the most important foundations of lasting recovery.
Support self-care as interoception in action
Many of the self-care difficulties that adults find puzzling in children, not recognising hunger or thirst, missing fatigue until collapse, failing to notice pain or illness, are interoceptive difficulties rather than carelessness or inattention. Supporting interoceptive development through explicit, normalised attention to self-care signals ("Let's do a body check before we start: are you hungry? thirsty? tired? too warm?") builds both the skill and the habit. This is particularly important for autistic children, many of whom may have significant interoceptive differences that affect their ability to manage basic bodily needs without external prompting. Building these check-ins into structured routines, at consistent times and with consistent language, creates the external scaffold that supports the development of internal awareness over time.
A Faith-Informed Perspective
Interoception, the sense of the body from within, sits at the intersection of some of the most interesting theological questions about what it means to be an embodied creature before God. If, as Craig and Damasio's neuroscience proposes, the felt sense of being a self is grounded in the body's internal signals, then attending to interoception is not merely a therapeutic exercise. It is, in the deepest sense, the practice of self-knowledge, and self-knowledge, in the Christian tradition, has always been understood as inseparable from knowledge of God.
The richest scriptural thread for interoception is the biblical concept of the lēb, the Hebrew word most often translated "heart" but which, in the Hebrew anthropology, does not refer to the seat of emotion in the modern Western sense. The lēb is the innermost centre of the person: the place of thought, will, feeling, and moral orientation, all held together. When Proverbs 4:23 instructs, "Above all else, guard your heart (lēb), for everything you do flows from it," the author is describing the importance of attending to one's own interior life, the whole integrated inner world of the person, as the source from which action, relationship, and character emerge. This is interoception in its deepest sense: the practice of inward attentiveness as the foundation of wise living.
The Psalms provide some of the most striking examples of interoceptive awareness in scripture. David does not merely report his emotional state abstractly; he locates it in the body. "My heart is in anguish within me; the terrors of death have fallen on me. Fear and trembling have beset me; horror has overwhelmed me" (Psalm 55:4–5). The physical specificity here, terror in the body, trembling in the limbs, is not poetic decoration. It is the language of someone who has cultivated the habit of listening to their body's signals and bringing what they find there into honest speech before God. This is the interoceptive practice of the Psalms: the body is not bypassed on the way to prayer. It is the starting point.
For children who struggle with interoception, who find their own interior world confusing, inaccessible, or overwhelming, the Christian vision of a God who knows the innermost parts of a person carries particular pastoral weight. "You have searched me, Lord, and you know me" (Psalm 139:1). The one who cannot fully know their own inner signals is held by the One who knows them completely. This is not a substitute for the patient work of developing interoceptive awareness, but it is the theological ground beneath it: the child is not alone in the confusing interior landscape. The God who formed the inward parts (Psalm 139:13) is not distant from the body's signals. He is the One who made them.
Those wishing to explore the theological connections further may find rich threads in the contemplative tradition (particularly the practice of examen in Ignatian spirituality, a structured practice of attending to the movements of consolation and desolation within, which is essentially a theological interoceptive practice), the theology of conscience (the inner voice that registers moral and relational reality, requiring interoceptive access to be heard), and the repeated biblical command to "be still" or "wait": practices that, neurologically, are exercises in interoceptive attention.
Key Takeaways
- Interoception is the sense of the body's internal state, and it is foundational to emotional literacy and self-regulation. A child cannot reliably name, manage, or communicate emotions they cannot first detect as body signals. Interoceptive awareness is the sensory layer underneath all emotional development, not an add-on but a prerequisite.
- Interoceptive accuracy varies significantly between individuals and can be taught. Some children have highly accurate and detailed access to their body's signals; others receive very little signal, or receive it only as undifferentiated distress. Structured, graduated interoceptive education, beginning with simple, non-threatening body sensations, builds the skill over time.
- Development looks different across ages. Younger children (5–10) benefit from movement-based body awareness activities, visual body maps, and low-stakes check-in routines. Adolescents (11–18) respond better to interoception framed as self-knowledge and performance awareness, the same body literacy that athletes and high-performers cultivate deliberately.
- Alexithymia and interoceptive difficulty are closely linked, with particular relevance for autistic children. Many emotional and social difficulties in autistic young people may be rooted in interoceptive differences rather than social cognition deficits. Addressing the body-signal level may be more effective than social skills training for these children.
- Trauma disrupts interoception, and interoceptive work with trauma-affected children requires great care. For children whose bodies have been the site of overwhelming experience, turning attention inward can feel dangerous. Interoceptive work in these contexts requires a well-established relational base, an external co-regulatory presence, and a very gradual approach.
- The biblical lēb, the heart as the integrated interior life, is the scriptural category for interoceptive attentiveness. The practice of attending to one's own inner signals, which the Psalms model with striking bodily specificity, is both the foundation of wise living in Proverbs and the starting point for honest prayer. Interoceptive awareness is, in the deepest sense, a spiritual practice.