You might know that autism affects how people experience the world around them. But there’s another, less visible layer to this: how autistic people experience the world inside their own bodies. That’s where interoception comes in. For many autistic people, this lesser-known sense is one of the most significant sources of daily difficulty, and one of the least understood.
If you suspect yourself, a loved one, or your child for Autism, it helps to get professional clarity through Adult Autism Assessment or Children’s Autism Assessment.
Key Takeaways
- Interoception is the sense that tells us what’s happening inside our bodies, such as hunger, thirst, pain, and heartbeat.
- Many autistic people experience differences in interoception, which can affect everything from eating habits to emotional awareness.
- Poor interoception can make it hard to recognise when you’re ill, tired, or overwhelmed.
- Interoception is now recognised as a key factor in many autistic experiences, including meltdowns and emotional regulation.
What Is Interoception?
Interoception meaning, in simple terms, is the body’s ability to sense its own internal state. It’s sometimes called the “eighth sense.” It tells you when you’re hungry, full, thirsty, tired, cold, in pain, or anxious. When your heart races before a presentation, or you feel butterflies in your stomach, that’s interoception at work.
Most people process these signals automatically and act on them without much thought. When interoceptive signals are unclear, absent, or overwhelming, day-to-day life becomes significantly harder.
Interoception and Autism: What Does the Research Say?
The link between interoception autism research is growing. Studies have found that many autistic people process interoceptive signals differently from non-autistic people.¹ Some experience reduced awareness of internal signals, meaning they may not notice hunger until it becomes extreme, or may not feel pain as strongly in the moment. Others experience heightened or overwhelming sensations that are difficult to interpret.
Interestingly, researchers have also found a strong connection between interoceptive awareness and emotional regulation in autistic people.¹ When you can’t reliably read your own body’s signals, it becomes harder to understand and manage your own emotions.
Why This Matters for Understanding Autism
Interoception helps explain some experiences that might otherwise seem puzzling. An autistic child who eats until they’re sick may not receive clear “full” signals. A teenager who doesn’t notice they’re cold until they’re shivering intensely may not process temperature cues well. An adult who regularly misses their own signs of anxiety, and then has a sudden overwhelming meltdown, may have been in distress for a long time without realising it.
This is part of what it means to consider how autism feels from the inside, not just how it looks from the outside.
Signs of Poor Interoception
Interoceptive differences can show up in many ways. Signs of poor interoception include:
- Not noticing hunger or thirst until extreme
- Frequently needing the toilet urgently with little warning
- Difficulty identifying when something hurts, or identifying where pain is
- Not noticing a full bladder until it becomes urgent
- Trouble identifying emotions in the body (sometimes called alexithymia, the reduced ability to recognise and describe one’s own feelings)
- Eating very little, or eating very large amounts, without awareness of hunger cues
- Not noticing tiredness until completely exhausted
- Difficulty identifying anxiety or stress building before it becomes overwhelming
Not every autistic person experiences all of these. Interoceptive profiles vary just as much as autism itself does.
Interoception and Emotional Regulation
One of the most important implications of interoception autism research is how it connects to emotional regulation. Emotions are partly physical. Fear shows up as a racing heart and tight chest. Anger can feel like heat or tension. Sadness often sits in the throat or stomach. If those physical signals aren’t clearly perceived, it becomes much harder to identify what you’re feeling, and by extension, what you might need.
This is why many autistic people seem to go from calm to crisis quickly. It’s not a lack of emotional experience. Often, the gradual build-up of distress wasn’t visible or felt until it reached a breaking point.
Occupational therapists, particularly those trained in sensory integration, often work with autistic children and adults on developing interoceptive awareness. This can be done through body-based activities, mindfulness adapted for autistic people, and structured practice in noticing internal sensations in a safe environment.
How Understanding Interoception Can Help
Knowing about interoceptive differences doesn’t change them overnight, but it does change how families and individuals understand behaviour. A child who doesn’t respond to pain isn’t being dramatic or attention-seeking. An adult who regularly forgets to eat isn’t being careless. Understanding these as interoceptive differences reframes the experience, and opens the door to better support.
If you’re exploring whether you or your child might be autistic, Autism Detect’s initial screening consultation is a good starting point. Our ADOS-2 trained clinicians take a whole-person approach, looking at the full picture of how someone experiences the world.
Frequently Asked Questions
What is interoception?
Interoception is the sense that tells you what is happening inside your body. It includes awareness of hunger, thirst, pain, temperature, heart rate, and other internal signals. It’s sometimes described as the “eighth sense” alongside the more familiar five senses plus proprioception and the vestibular sense.
How does autism affect interoception?
Many autistic people experience differences in how they process interoceptive signals. Some have reduced awareness of internal states, meaning they may not notice hunger, pain, or tiredness until those signals become extreme. Others experience heightened internal sensations that are difficult to interpret or regulate.
What is alexithymia, and is it related to interoception?
Alexithymia refers to difficulty identifying and describing one’s own emotions. It’s closely linked to interoception because emotions have a physical component. If you don’t clearly perceive internal body signals, it becomes harder to name what you’re feeling. Alexithymia is more common among autistic people than in the general population.²
Can poor interoception be improved?
Many occupational therapists and specialists work on building interoceptive awareness through body-based activities, structured attention exercises, and sensory integration approaches. It’s not about curing a deficit, but about building skills and strategies to better understand internal signals over time.
Is interoception tested during an autism assessment?
Interoception itself isn’t typically a separate test within an autism diagnostic assessment. However, a thorough assessment will explore sensory processing, emotional regulation, and body awareness, all of which are closely connected to interoception.
Why does my autistic child not seem to feel pain the same way?
Pain perception differences are common in autism and are thought to be related in part to interoceptive processing differences. Some autistic people have a reduced pain response and may not react visibly to injuries. Others may experience pain more intensely. Both are valid variations of interoceptive experience.
References
[1] Garfinkel, S.N., Tiley, C., O’Keeffe, S., Harrison, N.A., Seth, A.K., & Critchley, H.D. (2016). Discrepancies between dimensions of interoception in autism: Implications for emotion and anxiety. Biological Psychology, 114, 117–126. https://doi.org/10.1016/j.biopsycho.2015.12.003
[2] Kinnaird, E., Stewart, C. & Tchanturia, K. (2019) Investigating alexithymia in autism: A systematic review and meta-analysis. European Psychiatry, 55, pp. 80–89. https://doi.org/10.1016/j.eurpsy.2018.10.008
