A cross-task comparison on visuospatial processing in autism spectrum disorders.
Autistic kids match peers on visual memory and speed except when they must quickly merge scattered visual bits.
01Research in Context
What this study did
Cardillo et al. (2020) compared kids with autism to same-age peers on three kinds of visuospatial tasks.
They looked at speed, working memory, and how fast each group pieced together broken-up pictures.
All kids had normal IQ scores so any differences came from autism, not general delay.
What they found
Both groups moved at the same speed and held the same amount in visual working memory.
When pictures were split into tiny, scattered parts, the autism group answered more slowly.
On tasks that only needed spotting a single detail, speed was equal again.
How this fits with other research
Schlink et al. (2022) saw the same null result across childhood to adulthood, so intact visual working memory looks stable.
Capio et al. (2013) found autistic people actually detect 17 ms visual timing gaps better than peers.
The twist is explained by task type: timing tasks tap early visual sharpness, while Ramona’s fragmented pictures demand stitching pieces together.
Danis et al. (2023) later showed autistic kids can be faster on complex visuospatial reasoning, proving the slowdown is not global but tied to low-cohesion images.
Why it matters
You can trust that visual working memory is on par; do not lower your expectations there.
Do give extra wait time when instructions or materials present disjointed visuals, such as scattered puzzle pieces or cluttered worksheets.
Use clear, grouped layouts and preview the whole picture first to cut the need for rapid spatial glue.
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02At a glance
03Original abstract
This study aimed to draw a cross-task comparison on visuospatial processing in autism spectrum disorder without intellectual disability. Participants with autism spectrum disorder were matched with typically developing individuals on general intelligence and perceptual reasoning index. The two groups were subsequently compared on visuospatial processing speed, visuo-perceptual, visuo-constructive, and visuospatial working memory tasks. Our results revealed similar performances between autism spectrum disorder and typically developing individuals on measures of visuospatial processing speed and visuospatial working memory. The autism spectrum disorder group showed slower reaction times than the typically developing group in the visuo-perceptual task, when stimuli were characterized by a minimum level of perceptual cohesiveness, revealing weaker spatial integration abilities. Concerning the visuo-constructive domain, no differences between the autism spectrum disorder and the typically developing group emerged for the unsegmented condition, revealing that our participants with autism spectrum disorder were similar to the typically developing group in the local analysis of the stimuli. The discussion takes into account the role of individual differences on visuospatial intelligence, task requirements, and cognitive domains to clarify the visuospatial processing skills of individuals with autism spectrum disorder.
Autism : the international journal of research and practice, 2020 · doi:10.1177/1362361319888341