Integrating multimodal neuroimaging and physical-health markers outperformed single-modality models for ASD classification in a population-based cohort, yielding an AUC-ROC of 0.68, with sleep function, right superior temporal gyrus cortical thickness, and cingulo-opercular/default mode network connectivity as the strongest predictors.
Key Findings
Results
Multimodal integration of brain and physical-health markers outperformed single-modality models for ASD classification.
The multimodal model achieved an AUC-ROC of 0.68 (95% CI: 0.62–0.73)
The multimodal model achieved an AUC-PR of 0.66 (95% CI: 0.60–0.73)
Single-modality models performed below these levels, indicating complementary information across modalities
Models were evaluated through stratified cross-validation
Results
Among physical-health markers, sleep function contributed most strongly to ASD classification.
Physical-health markers integrated included sleep, growth, and early development measures
Sleep was identified as the single strongest physical-health predictor among the markers examined
Data were drawn from the ABCD Study, a large community-based cohort of adolescents
Results
Cortical thickness in the right superior temporal gyrus was among the top neuroimaging predictors of ASD classification.
The right superior temporal gyrus emerged as a key structural MRI predictor
Structural MRI data were integrated alongside diffusion and resting-state functional MRI modalities
This finding was identified within a population-based, demographically balanced sample
Results
Connectivity between the cingulo-opercular and default mode networks was a significant neuroimaging predictor of ASD classification.
Resting-state functional MRI connectivity between the cingulo-opercular and default mode networks was among the top neuroimaging features
This connectivity measure contributed alongside structural and diffusion MRI features in the multimodal model
Functional connectivity was derived from resting-state fMRI data in the ABCD Study cohort
Methods
Propensity-score matching was used to create demographically balanced ASD and non-ASD groups from the ABCD Study cohort.
The ABCD Study is a large community-based cohort of adolescents recruited from the general population
Participants with and without ASD were selected, allowing contrasts reflecting natural variability across individuals
Propensity-score matching ensured demographic balance between groups prior to model training
Conclusions
The study provides proof of concept that combining multimodal MRI and physical-health data within a large, demographically representative cohort can enhance ASD classification and yield biologically interpretable features.
The population-based design situates findings within a community context rather than a clinical referral context
The multimodal framework integrates structural, diffusion, and resting-state functional MRI with physical-health markers
Authors describe the study as offering 'a preliminary framework for integrating neural and physiological measures in future large-scale studies of neurodevelopmental diversity'
What This Means
This research suggests that combining brain imaging data with physical health information — such as sleep patterns, growth measures, and early developmental history — can improve the ability to distinguish adolescents with autism spectrum disorder (ASD) from those without it, compared to using any single type of data alone. The study used data from the Adolescent Brain Cognitive Development (ABCD) Study, a large, nationally representative cohort of children and adolescents, and carefully matched participants with and without ASD to ensure fair comparisons. The combined model achieved moderate classification performance (AUC-ROC of 0.68), which, while not clinically diagnostic on its own, represents meaningful signal above chance in a real-world, community-based population.
Among the physical health factors examined, sleep was the most informative for identifying ASD-related differences. On the brain imaging side, the thickness of a region called the right superior temporal gyrus — an area involved in social processing and language — and the connectivity between two brain networks (the cingulo-opercular and default mode networks) were the strongest neural predictors. These findings are consistent with prior research highlighting social-communicative brain regions and network differences in ASD.
This research suggests that no single biological marker captures the full picture of ASD, and that combining information from the brain and body together offers a more complete view. The study is presented as a proof-of-concept rather than a clinical tool, and the authors emphasize that the population-based design means results reflect community-level variation in ASD rather than only severely affected clinical cases. Future large-scale studies could build on this framework to better understand the biological underpinnings of neurodevelopmental diversity.
Zeevi D, Acosta-Rodriguez H, Bobba P, Stephan A, Lin H, Malhotra A, et al.. (2026). Integrating Multimodal Neuroimaging and Physical-Health Markers for Autism Spectrum Disorder in the ABCD Study.. Journal of integrative neuroscience. https://doi.org/10.31083/JIN48212