Linguistic and Musical Syntax Processing in Autistic and Non-Autistic Individuals: An Event-Related Potential (ERP) Study.
Jiayin Li, Anna Petrova, Zivile Bernotaite and 5 others
PMID 40186511WHAT IT FOUND
Autistic adults answered sentence and music questions as accurately as non-autistic peers, but their brains took longer and used fewer resources to process syntax in both domains.
This suggests intact knowledge but inefficient real-time integration.
Key findings
01Behavioral accuracy was comparable between groups, with no significant group effect or interaction.
02Autistic participants showed delayed and reduced P600 brain responses to syntactic violations in both language and music compared to non-autistic participants.
03The similar P600 effects across language and music domains within each group indicate shared neural mechanisms for syntactic integration.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study focused on a specific subgroup of autistic adults with intact language and cognitive abilities, so findings may not apply to those with language impairments or lower IQ. Participants had varied musical backgrounds, which may have contributed to lower accuracy in the music condition compared to previous studies with trained musicians. Direct comparison of early auditory processing (N1-P2) between language and music was not possible due to the continuous nature of speech stimuli.
Declared interests
The authors declare no conflicts of interest.
The easy way to misread this
Do not assume that because an autistic adult performs well on standard language tasks, their syntactic processing is typical. The study shows that neural responses are delayed and reduced even when behavioral accuracy is normal, indicating that offline success does not reflect online efficiency.