PTOTSLPCohortJournal of autism and developmental disorders2025

Application of Sensory Subtypes: Understanding Core Autism Features, Adaptive Behaviors, and Motor Skills in Autistic Children.

Sabrina A Kabakov, Olivia J Surgent, Emily C Skaletski and 3 others

PMID 40804576

WHAT IT FOUND

Autistic children classified as having extreme-mixed sensory differences showed significantly lower motor skills, adaptive behavior, and higher repetitive behaviors compared to those with mild sensory differences.

Children with attenuated-preoccupied sensory profiles demonstrated notably higher motor skills than the extreme-mixed and sensitive-distressed groups.

Key findings

01The extreme-mixed sensory subtype had significantly lower adaptive behavior total scores compared to the mild and sensitive-distressed subtypes.

02The attenuated-preoccupied subtype showed large-sized significant differences with increased motor skills compared to the sensitive-distressed and extreme-mixed subtypes.

03The mild subtype reported significantly less prominent repetitive behaviors compared to the sensitive-distressed, attenuated-preoccupied, and extreme-mixed subtypes.

STILL TO COME

How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs

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What it does not show

The sample size was small-to-moderate (n=118), and subtypes were unbalanced, with fewer participants in the extreme-mixed and attenuated-preoccupied groups. Participants were required to have an IQ above 60 and, for most, the ability to undergo an MRI, which excludes children with higher support needs or those who cannot tolerate medical imaging. The sample was predominantly Caucasian, limiting generalizability to other racial and ethnic groups. The study used the SRS-2 to help define subtypes but then compared these subtypes on other autism measures (SCQ, RBS-R, VABS-2) that are known to be intercorrelated with the SRS-2, potentially inflating apparent differences. Missing data occurred for several measures, leading to the exclusion of some participants from specific analyses.

Declared interests

The authors have no conflicts of interest to disclose.

The easy way to misread this

Do not assume that all children with 'extreme-mixed' sensory profiles have identical deficits or that the 'mild' profile indicates a lack of clinical need. The study shows group-level trends, but individual children may present differently. Furthermore, the use of the SRS-2 in both grouping and outcome comparison means that differences in autism features may be partly methodological rather than purely clinical.

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