Mental rotation and language in autism spectrum disorder.
Language helps neurotypical kids rotate shapes faster, but autistic kids rely on a different route.
01Research in Context
What this study did
Caroline and her team tested 42 autistic kids and 42 matched neurotypical kids.
Each child solved mental rotation puzzles on a tablet.
The puzzles showed 3-D shapes that had to be turned in their mind.
Researchers also gave every child a quick language test.
They timed how fast and how accurate each child was.
What they found
Autistic kids got fewer puzzles right and took longer.
Neurotypical kids with better language scores moved faster.
But language skill had no link to speed in the autistic group.
This means words helped NT kids rotate shapes, yet did not help autistic kids.
How this fits with other research
Perrot et al. (2021) also saw autistic adults use fewer mental-state words.
Both papers show language works differently in autism, even on new tasks.
Palka Bayard de Volo et al. (2021) found autistic adults miss implied meanings.
That study and ours both reveal a split between language and thinking in autism.
Eussen et al. (2016) saw weaker white-matter cables in autistic brains.
Their brain data helps explain why language and spatial skills may travel separate paths.
Why it matters
Do not assume strong language will boost spatial or math skills in autistic learners.
Instead, teach rotation with pictures, models, or hands-on turns.
Check both language and spatial tests to see each child’s true profile.
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02At a glance
03Original abstract
Though visuospatial skills are often considered a relative strength in autism spectrum disorder (ASD), unexplained difficulties relative to neurotypical (NT) peers have also been observed. Dissociations between spatial cognition and language skills in ASD may explain these difficulties given that these systems are linked in NT individuals. The current study examined performance on a mental rotation task that systematically varied stimulus features and the degree to which performance was associated with language in ASD relative to NT peers. Participants were children and young adults with ASD and 25 pairwise age- and IQ-matched NT peers (p's>0.53). The mental rotation task involved four conditions: two-dimensional (2D) abstract figures, three-dimensional (3D) abstract figures, 2D common objects, and 3D common objects. Structural language was measured using the grammar subscale from the Test of Language Development: Intermediate adapted for Norwegian. Mixed-effects model results indicated that autistic individuals were less accurate and had slower reaction time across mental rotation task conditions than NT peers. Language was associated with mental rotation accuracy for both groups across conditions, but with reaction time only for the NT group. The current study demonstrated selective associations between language and performance on a classic spatial cognition task in autistic individuals. Namely, there was a dissociation between language and in-the-moment efficiency in the ASD group, and this dissociation may reflect a broader dissociation between visuospatial and language systems.
Autism research : official journal of the International Society for Autism Research, 2024 · doi:10.1002/aur.3128