What is Sensory hyposensitivity?IN BRIEF
Sensory hyposensitivity is when the brain receives information from a sense less intensely or more slowly. The sense keeps working, but its signal comes through muted, as if the volume were turned down lower than usual.
A person who's hyposensitive to pain may get hurt without noticing right away. A person who's hyposensitive to touch may wear something scratchy or ill-fitting without it bothering them. The same mechanism can affect sight, hearing, smell, taste, balance, body position, the sense of time, or internal signals like hunger.
To compensate, the person may seek out more sensation themselves, for instance by moving a lot, touching objects, or making noise. It isn't a whim: it's a way of taking in information.
Tools and accommodations exist to give the brain the stimulation it needs, and to make the environment safer when the person doesn't pick up on a danger.
How Hyposensitivity Works
Hyposensitivity means it takes more stimulation than average for a sense to respond. The person isn’t missing that sense: sensory receptors pick up the information just fine, but it arrives weaker, delayed, or both.
The DSM-5, the manual used to diagnose autism, sets out a single sensory criterion. It can show up in three ways: hyperreactivity to sensory input, hyporeactivity, or an unusual interest in certain sensory aspects of the environment, such as smelling or touching objects repeatedly. Meeting just one of these three is enough to satisfy the criterion.
This sensory criterion is just one of four criteria in the same DSM-5 category, alongside repetitive movements, insistence on routine, and restricted interests. To receive an autism diagnosis, a person needs to meet at least two of these four criteria, not necessarily the sensory one. Hyposensitivity isn’t a given for every autistic person.
For a given sense, some autistic people are hyposensitive and others are hypersensitive: it isn’t fixed from one person to another. The same person can also be hyposensitive to one sense and hypersensitive to another, sometimes at the same time.
Scenario
Sofian is running with his friends and falls. He doesn't cry, gets up, and keeps running. At bedtime, he cries and says he hurt himself when he fell. His parents might think he's saying this to stall bedtime. But if Sofian is hyposensitive to pain, the message about his injury may only reach him once the day's other stimuli have settled down.
Everyday Effects
Hyposensitivity can have very concrete effects. The person may not react to things that would call for attention, like a cut, a minor burn, or an ill-fitting piece of clothing. They may also keep stimulating a sense longer than needed without realizing it, for instance spinning until they feel dizzy or nauseous.
Behaviors that bother the people around them, like touching other people’s belongings or standing very close to someone, can come from tactile or proprioceptive hyposensitivity rather than a lack of respect for personal space. Interoceptive hyposensitivity can also make it hard to know when to eat, drink, use the bathroom, or sleep, since the internal signals for these needs are themselves less clear.
Important
A hyposensitive person can sometimes put themselves or others in danger without realizing it. This is especially common in childhood. It's hard to gauge the impact of an action when you don't feel its effects well, for example pulling your hand away from a heat source that doesn't feel hot to you. In these situations, it's better to make the environment safer (removing hazardous objects, checking water temperature, keeping an eye on risky activities) than to rely only on the person's own sense of danger.
Seeking Out More Sensation
To make up for a signal that’s too weak, a hyposensitive person may actively seek out more stimulation. This is called sensory seeking. They might spin, jump, clap their hands, chew on an object, or make noise. This seeking behavior is a common consequence of hyposensitivity.
Hyposensitivity isn’t the only cause of Active Sensory Seeking. It’s now recognized as a sensory profile in its own right, not just a way of compensating. It’s linked, among other things, to repetitive behaviors, meaning movements or routines that come up often, and to certain aspects of executive function, the brain’s capacity to plan, organize, and adapt to change (Consoli et al., 2026).
So a person can actively seek out sensation without being hyposensitive. Conversely, a hyposensitive person doesn’t necessarily seek more stimulation for every sense involved.
Hyposensitivity, Sense by Sense
Each of the senses below can be experienced in a hyposensitive way, each with its own signs.
Sight
The person may see with less precision, or notice things more slowly: an obstacle, a change in a room, the expression on someone's face.
Hearing
Quiet sounds, a voice calling from far away, or an instruction given only once can go unnoticed.
Touch
A light touch, an insect bite, or an ill-fitting piece of clothing may go unfelt, or be felt only after a delay. This can lead to missing a minor injury, or to touching objects and people with more force than intended.
Taste and texture
Certain tastes or textures can seem bland, almost unnoticeable. The person may then seek out very spicy or very sweet foods, or foods with a strong texture. They may also put non-food objects in their mouth.
Smell
Recent research shows reduced olfactory function in autistic people, especially for identifying odors, with a wider gap in childhood (Cullen et al., 2026). This reduced function is different from reactivity to smells. A person can be very bothered by a strong odor while still scoring lower on an identification test: these are two different measures, not a contradiction.
Nociception
A person who's hyposensitive to pain may not notice a serious injury, like a fracture or a burn, for quite a while. The DSM-5 gives this as an example of hyporeactivity. But lab studies don't agree on what explains it. Some find pain sensitivity similar to average, or even higher, once it's measured directly (Hoffman et al., 2023; Qian et al., 2024). What may vary isn't sensitivity itself, but how long it takes for the information to become conscious, or a reaction that goes unnoticed because it doesn't look like what's expected.
Proprioception (Including Toniception)
Proprioception is sensing the position and movement of the different parts of your body, including how much force you're applying, which is toniception. Hyposensitivity here can produce a heavier gait, less precise movements, or trouble judging how much force to use, for example when holding a pencil or giving a hug.
Thermoception
Hyposensitivity to temperature can mean heat or cold is felt less clearly: wearing a coat that's too light in winter without noticing, or not realizing the bathwater is very hot. Research doesn't agree on how large this effect is (Casterman et al., 2024).
Chronoception
The perception of passing time can be less precise: the person may easily lose track of time, or be late without feeling like they dawdled. Note: chronoception isn't a sense like the others. It doesn't rely on a dedicated receptor, the way the eye handles vision, but on a network of distributed brain regions (Wittmann, 2013).
Vestibular
The vestibular system senses the head's movement and orientation relative to gravity. Hyposensitivity here can show up as a strong need for movement, such as spinning, rocking, or jumping, without ever feeling dizzy.
Interoception
Hyposensitivity to the body's internal signals can make it hard to notice hunger before becoming famished, fatigue before becoming exhausted, or discomfort before it becomes serious. The link between autism and interoceptive accuracy is still debated (Klein et al., 2025).
What to Do About Hyposensitivity
A hyposensitive person needs more stimulation to take in sensory information well. The right tools and environment can help them get that stimulation safely.
Tools
Sports and Physical Activity
Regular physical exertion provides steady proprioceptive and vestibular stimulation.
Lighting (color-changing lamps, string lights, projectors)
For a visual sense that needs more intensity.
Spinning Stool or Cushion
To meet a need for vestibular movement without having to get up.
Music With Strong Bass
For a hyposensitive sense of hearing.
Weighted Blanket or Vest
Deep, continuous pressure, useful for proprioception.
Chew Tools (jewelry or rings designed for this purpose)
For an oral need.
Deep Massage, Given by Someone the Person Trusts
More intense tactile and proprioceptive stimulation.
Vibrating Objects or Cushions
Another way to increase the intensity of tactile and proprioceptive input.
Compression Tools (elastic bandages, compression clothing)
For steady pressure throughout the day.
These are things to try and adjust to the person, not solutions that work for everyone. The scientific evidence on how well many of these tools work remains limited. For example, a randomized trial of weighted blankets found no measurable effect on sleep in autistic children compared to a regular blanket. But the children and their parents still said they preferred the weighted blanket (Gringras et al., 2014).
References
Peer-Reviewed Scientific Sources
Casterman, N., Rossignol, M., Colomar, A., & Cassioli, F. (2024). Thermoception in Autism Spectrum Disorder: A Concise Systematic Review. Review Journal of Autism and Developmental Disorders, 13(2), 556-564. https://doi.org/10.1007/s40489-024-00445-2
Consoli, C., Turriziani, L., Antoci, M., Lo Monaco, M., Ceraolo, G., Spoto, G., Nicotera, A. G., & Di Rosa, G. (2026). Sensory phenotypes in autism spectrum disorder associated with distinct patterns of social communication, repetitive and restrictive behaviors or interests, and comorbidities: A state-of-the-art review. Brain Sciences, 16(1), 53. https://doi.org/10.3390/brainsci16010053
Cullen, I., Dal Bò, E., Maddox, P., Sophocles, T., McShea, K., Brodkin, E. S., & Parma, V. (2026). Olfactory function in autism spectrum disorder across the lifespan: A systematic review and meta-analysis. Autism, 30(9), 2225-2247. https://doi.org/10.1177/13623613261462975
Gringras, P., Green, D., Wright, B., Rush, C., Sparrowhawk, M., Pratt, K., Allgar, V., Hooke, N., Moore, D., Zaiwalla, Z., & Wiggs, L. (2014). Weighted blankets and sleep in autistic children: A randomised controlled trial. Pediatrics, 134(2), 298-306.
Klein, M., Witthöft, M., & Jungmann, S. M. (2025). Interoception in individuals with autism spectrum disorder: A systematic literature review and meta-analysis. Frontiers in Psychiatry, 16, Article 1573263. https://doi.org/10.3389/fpsyt.2025.1573263
Qian, H., Shao, M., Wei, Z., Zhang, Y., Liu, S., Chen, L., & Meng, J. (2024). Intact painful sensation but enhanced non-painful sensation in individuals with autistic traits. Frontiers in Psychiatry, 15, 1432149. https://doi.org/10.3389/fpsyt.2024.1432149
Wittmann, M. (2013). The inner sense of time: How the brain creates a representation of duration. Nature Reviews Neuroscience, 14(3), 217-223.
Hoffman, T., Bar-Shalita, T., Granovsky, Y., Gal, E., Kalingel-Levi, M., Dori, Y., Buxbaum, C., Yarovinsky, N., & Weissman-Fogel, I. (2023). Indifference or hypersensitivity? Solving the riddle of the pain profile in individuals with autism. Pain, 164(4), 791-803.
Resource to Learn More
Josiane Caron Santha, occupational therapist josianecaronsantha.com
This page is written from a neuroaffirmative perspective. Hyposensitivity is presented here as a difference in how sensory information is processed, not a deficit to be corrected. Sensory profiles vary a great deal from one autistic person to another, even for the same sense, so nothing here is universal. The tools suggested are things to try, not guaranteed solutions, and they don’t replace support from a professional trained in autism.
Updated: September 11, 2026
By Valérie Jessica Laporte
