Skip to main content

Heightened sensory perceptions

Published: May 27, 2018
Last updated on September 21, 2024

Many autistic people report heightened sensory perceptions, and research confirms this!


Extraordinary vision

One example of heightened sensory perception is being able to read tiny text—like the small print on the back of products—from across a room. At a size of 0.07 mm × 0.10 mm, below is the world’s smallest book, entitled Teeny Ted from Turnip Town, next to a minute scratch—you need an electron microscope to read it! Or maybe just an autistic with extraordinary vision. 😉

Embrace Autism | Heightened sensory perceptions | main qimg 813a5d6518d1987d98b81000afec9992


Visual hypersensitivity

Our brains have allocated more brain resources in the areas associated with visual detection resulting in visual hypersensitivity.

Embrace Autism | Heightened sensory perceptions | main qimg 2aec8af6d05d3ab50556d391f66b390c
Image attribution: Vision

Specifically, autistics have more brain resources associated with visual detection and identification (but less activity in the areas used to plan and control thoughts and actions).[1]Enhanced visual functioning in autism: An ALE meta-analysis (Samson, Mottron, Soulières, & Zeffiro, 2011)[2]New research explains autistic’s exceptional visual abilities (2011) | EurekaAlert!

This results in outstanding capacities in visual tasks.

Instead of playing Where’s Waldo?, we play Here’s Waldo!

Embrace Autism | Heightened sensory perceptions | main qimg 9c643f432b69734c971102b438df876d
Image source: Slate – Where’s Waldo? That’s Easy

 

Many autistic people are able to see changes in the gap size on a screen filled with the letter C, much better than neurotypicals.[3]Brief report: the relationship between visual acuity, the embedded figures test and systemizing in autism spectrum disorders (Brosnan, Gwilliam & Walker, 2012)

We grow up not knowing that others do not see the world the same as us…they don’t see air particulates—some of us do:[4]Autism and Asperger Syndrome (Baron-Cohen, 2008)

My bed was surrounded and totally encased by tiny spots which I called stars, like some kind of mystical glass coffin. I have since learned that they are actually airborne particulates yet my vision was so hypersensitive that they often became a hypnotic foreground with the rest of ‘the world’ fading away.

Embrace Autism | Heightened sensory perceptions | main qimg 2361fdfef511bec1c37f6a625a88ed24
Image credit: Martin Silvertant

Pattern recognition

Autistic people show increased pattern recognition.

Embrace Autism | Heightened sensory perceptions | main qimg 9318ffecf3e1b3b8b1ec1d5a8f5f6138

Autistics exhibit more activity in the temporal and occipital regions and less activity in frontal cortex than non-autistics. The identified temporal and occipital regions are typically involved in perceiving and recognizing patterns and objects.[5]New research explains autistic’s exceptional visual abilities (2011) | EurekaAlert!


Detail-oriented

Autistic people tend to see more details than neurotypicals, because we process a greater amount of sensory information. While neurotypicals focus on faces, autistic people tend to look around and see the details.

Embrace Autism | Heightened sensory perceptions | main qimg 1e8b474be417c8445c4eaa07647365a9
Image source: A Sandbox – Can’t See the Forest for the Trees

When you show a neurotypical and an autistic person a forest, they do see the trees…

But autistics also see the insects, the flowers, the moss, etc.—as well as their constituents and intricacies.


Optical illusions

In addition, autistic people are less susceptible on average to optical illusions

Embrace Autism | Heightened sensory perceptions | main qimg 6bd1afa488472a6f8d8174de9eec7990
Image source: Big Think – Do My Eyes Deceive Me

This is because we tend to focus on the details as opposed to the gestalt.


Colour perception

Our rods and cones are different. 85% of us see colours with greater intensity than neurotypicals, with red appearing nearly fluorescent; 10% saw red as neurotypical children do, and 5% saw muted colours.[6]Implications. Sensory Stimulation and Autistic Children (Paron-Wildes, 2012)[7]Interior Design for Autism from Childhood to Adolescence (Paron-Wildes, 2013)

Embrace Autism | Heightened sensory perceptions | main qimg 7f3191919e5e56425a64fd47a2d4771a
Image credit: Martin Silvertant

References

This article
was written by:
dr-natalie-engelbrecht

Dr. Natalie Engelbrecht ND RP is a dually licensed naturopathic doctor and registered psychotherapist, and a Canadian leader in trauma, PTSD, and integrative medicine strictly informed by scientific research.

She was diagnosed at 46, and her autism plays a significant role in who she is as a doctor, and how she interacts with and cares for her patients and clients.

Want to know more about her? Read her About me page.

Disclaimer

Although our content is generally well-researched
and substantiated, or based on personal experience,
note that it does not constitute medical advice.

Comments

Let us know what you think!

A hand pointing down (an index symbol).
Subscribe
Notify of
guest
3 Comments
Inline feedbacks
View all comments
3
0
We would love to hear your thoughts!x