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Related Experiment Video

Updated: May 12, 2025

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

Disrupted sensorimotor predictions in high autistic characteristics.

Antonella Pomè¹, Eckart Zimmermann¹

¹Perceptual Psychology, Institute for Experimental Psychology, Heinrich Heine University Düsseldorf, Düsseldorf 40225, Germany.

Proceedings of the National Academy of Sciences of the United States of America

|April 21, 2025

Summary

This summary is machine-generated.

Individuals with high autistic traits show reduced motion sensitivity during eye movements (saccades). This suggests impaired sensorimotor processing, potentially explaining sensory overload in autism.

Keywords:

Autism spectrum disorder motion perception saccades

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Area of Science:

Neuroscience
Autism Research
Sensory Processing

Background:

Humans stabilize visual perception during rapid eye movements (saccades) by using efference copy to cancel self-generated motion.
Disruptions in efference copy processing have been observed in individuals with high autistic traits.

Purpose of the Study:

To investigate saccadic omission and motion sensitivity in individuals with high versus low autistic traits.
To determine if autistic traits impact the ability to suppress self-motion perception during saccades.

Main Methods:

Participants with varying autistic traits performed saccades to targets while reporting the perceived location of briefly visible drifting gratings.
Motion sensitivity was also tested during fixation, matching retinal velocities experienced during saccades.

Main Results:

Individuals with high autistic traits demonstrated significantly reduced motion sensitivity during saccades compared to those with low autistic traits.
No differences in motion sensitivity were found during the fixation condition between groups.

Conclusions:

Heightened autistic traits are associated with impaired sensorimotor processing, specifically affecting the prediction of sensory input during self-generated movements.
This lack of sensorimotor integration may contribute to the sensory overload frequently experienced by autistic individuals.