Color perception in children with autism

Area of Science:

• Neurodevelopmental Disorders
• Sensory Perception
• Autism Spectrum Disorder (ASD)

Background:

• Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by social and communication challenges.
• Atypical sensory processing is frequently reported in individuals with ASD, but specific perceptual differences remain under investigation.

Purpose of the Study:

• To investigate color perception differences in children with autism spectrum disorder (ASD) compared to typically developing children.
• To examine color memory, search accuracy, and chromatic discrimination abilities in relation to ASD.

Main Methods:

• Experiment 1 compared color memory and search accuracy between children with ASD and neurotypical controls matched for age and non-verbal cognitive ability.
• Experiment 2 assessed chromatic discrimination and categorical color perception using a target detection task in both groups.

Main Results:

• Children with ASD demonstrated significantly lower accuracy in color memory and search tasks compared to controls.
• While children with ASD were less accurate in detecting chromatic targets on chromatic backgrounds, their speed was comparable when detection was accurate.
• No significant differences were found in the strength of categorical color perception between the groups.

Conclusions:

• Children with autism spectrum disorder exhibit specific deficits in color perception, particularly in memory, search, and discrimination.
• These findings suggest that atypical visual processing, specifically in color perception, is a characteristic feature of autism spectrum disorder.
• The results contribute to understanding perceptual development theories within the context of autism spectrum disorder.