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Updated: Feb 2, 2026

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
Published on: April 22, 2015
Unraveling the Autism Spectrum Heterogeneity: Insights From ABIDE I Database Using Data/Model-Driven Permutation
Francisco José Alcaide1, Ignacio Alvarez Illan1, Javier Ramírez1
1DaSCI Institute, University of Granada, Granada, Spain.
Purpose:
Autism spectrum condition (ASC) is a neurodevelopmental condition characterized by impairments in communication, social interaction, and restricted or repetitive behaviors. Extensive research has aimed to identify structural brain distinctions between individuals with ASC and neurotypical individuals using neuroimaging techniques. However, limited attention has been given to evaluating how variations in image acquisition protocols across different centers influence these observed differences.
Method:
This analysis focuses on structural magnetic resonance imaging (sMRI) data from the Autism Brain Imaging Data Exchange I (ABIDE I) database, considering both subjects' condition and individual centers to identify disparities between ASC and control groups. Statistical analysis, employing permutation tests, utilizes two distinct statistical mapping methods: statistical agnostic mapping (SAM) and statistical parametric mapping (SPM).
Finding:
Results from the SAM mapping method show greater consistency with existing literature. However, no statistically significant differences were found in any brain region. This outcome is attributed to factors such as limited sample sizes within certain centers, noise effects, and the challenges posed by multi-center databases in a heterogeneous condition such as autism.
Conclusion:
The study indicates limitations in using the ABIDE I database to detect structural differences in the brain between neurotypical individuals and those diagnosed with ASC. Multi-center variability and sample size constraints significantly affect the reliability of findings in structural neuroimaging studies of autism.
Related Concept Videos
Autism Spectrum Disorder
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
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