ArticleAlpha psychiatry2026
Identification of Children With Autism Spectrum Disorder Based on Multidimensional EEG Feature Fusion Across Temporal-Spectral-Spatial Domains.
Article in Alpha psychiatry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Background: To better characterize the complex neural features of autism spectrum disorder (ASD) and overcome the limitations of traditional electroencephalography (EEG) analysis methods, we developed a multi-metric EEG framework integrating temporal, spectral, and spatial dimensions, systematically characterized the dynamics, individualization, and nonlinear network features of neural oscillations in ASD, and evaluated their classification performance. Methods: Children with ASD ( Results: In the temporal domain, the ASD group showed significantly lower whole-brain LZC compared with the TD group, with the most pronounced reduction observed in the alpha band, suggesting reduced neural dynamic information processing capacity. In the frequency domain, the ASD group showed an expanded theta bandwidth, reduced low-frequency power in central-occipital regions, and increased beta power in frontal regions. In the spatial domain, children with ASD exhibited an atypical connectivity pattern characterized by increased low-frequency connectivity, reduced alpha-band connectivity, and increased beta-band connectivity, along with significantly higher global efficiency in theta and beta networks. The SVM model integrating temporal, frequency, and spatial features achieved an accuracy of 89.2%, significantly outperforming single-domain feature models, confirming that multidimensional feature integration improves classification performance. Conclusions: This study introduces a novel analytical approach combining individualized frequency band identification, nonlinear connectivity modeling, and dynamic complexity analysis. The findings comprehensively reveal multi-scale abnormalities of neural oscillations in children with ASD and demonstrate the discriminative power of multi-dimensional EEG feature integration for ASD classification and auxiliary diagnosis, thereby providing a scientific basis for clinical diagnosis and intervention. Clinical Trial Registration: No: ChiCTR2400092790. 24 November, 2024, https://www.chictr.org.cn/showproj.html?proj=249950.
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