3 min · Special Needs
March 21, 2018

Sensory Overload in Autism: Sensitivity Differences

In individuals with autism, extreme (hyper) or low (hypo) sensory overload issues is one of the most common problems. Their senses seem to be acutely working or not working at all.

People with autism are often involved in inflexible activities. Often these activities are self-stimulating.

  • Swinging
  • Rotating
  • Flapping hands
  • Touching everything
  • Watching rotating objects

Sensitivity Differences in Autism – Sensory Overload

Sensory Overload in people with autism means that their views are very sharp. For example, they pay attention to the fluffy pieces on the carpet or complain about airborne dust, they do not like bright lights, and they may even be afraid of extreme light flashes. Children with sensory overload can even notice the vibrations of light under fluorescent lights and the whole room vibrates for them. People with hyper-hearing often sleep very lightly, fear sudden unpredictable sounds (eg phone rings, baby cries), they can even be horrified by the storm, crowd, and a haircut. They usually close their ears when noise is painful for them, but others in the room may not be aware of any disturbing noise. Sometimes, children with sensory overload make repetitive noises to block other disturbing noises.

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Children who have sensory sensitivities especially based on sense of smell can not tolerate the smell of humans or objects while their families may be unaware of any odor. Since they experience the sensation of smell, they get away from people and they try to wear the same clothes all the time. For some of them, any food smell or taste can be very strong and they refuse to eat no matter how hungry they are. Some people with autism do not want to be touched by others. When people try to hug them, they withdraw themselves because they are afraid of being touched. Even the slightest touch can make them have a panic attack. Most people refuse to wear certain clothes because they can not tolerate the texture on their skin. Some children with autism react excessively to heat/cold and avoid wearing shoes. Children with vestibular sensory overload have difficulty in walking or running on nonsmooth or uneven surfaces and in changing directions. Individuals with proprioceptive sensory overload hold their bodies in strange positions and have difficulty manipulating small objects.

Hypersensitivity in Autism

Some children with autism are hypersensitive, so seeing, hearing, or feeling something makes them feel bad. They can shake their hands, move back and forth, or make strange noises to activate their senses.

Children with sensory overload can have trouble understanding where objects are, only when they see their frame, they realize what they are. They can look at the lights, focus on the sun or a bright light bulb. When they enter an unfamiliar room, they have to touch everything by going around in order to sit down.

Autistic people who have sensory overload tend to search for sound and listen to the most treble sound by leaning against electronic devices. They like the noisiest places in their house and do things such as knocking on the door, tearing paper, or ruffling it to increase their hearing senses. They want to chew and smell everything and do not feel pain or warmth.They may not notice an injury caused by a sharp object or be aware of a broken bone. They tend to harm themselves and they feel only what they live by biting their hands and hitting their heads to walls. They like screening under pressure, within tight clothes, usually under heavy objects. Child with sensory who has vestibular hypersensitivity will enjoy the fun and seek out any kind of activity. They can turn around for a long time without being dizzy or nauseating.

Sensory Overload in Autism Sources:

  • Integrated Treatment Services / Sensory Processing Disorder In Autism:

  • The National Autistic Society / Sensory issues:


This article is examined by Clinical Child Psychologist and Ph. D. Researcher Kevser Çakmak, and produced by Otsimo Editorial Team.

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This post does not provide medical advice. See Additional Information.