Spectral and Topological Abnormalities of Resting and Task State EEG in Chinese Children with Developmental Dyslexia

Spectral and Topological Abnormalities of Resting and Task State EEG in Chinese Children with Developmental Dyslexia | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 11 February 2025 V1 Latest version Share on Spectral and Topological Abnormalities of Resting and Task State EEG in Chinese Children with Developmental Dyslexia Authors : Yaqi Yang 0009-0001-5564-364X , Shuting Huo , Jie Wang 0000-0001-6423-826X , and Urs Maurer [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.173928974.48100613/v1 Published Brain Topography Version of record Peer review timeline 198 views 123 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Developmental dyslexia (DD) is a common reading disorder with neurological underpinnings, yet its spectral power and network topology abnormalities in Chinese DD remain unclear. This study investigates these abnormalities in Hong Kong Chinese children with DD using electroencephalography (EEG) data collected during resting states and a one-back Chinese-Korean character reading task. EEG recordings from 85 children with DD and 51 typically developing (TD) peers (aged 7–11) were analyzed using Fast Fourier Transform (FFT) for spectral power and minimum spanning tree (MST) metrics for brain topology. Children with DD exhibited significantly reduced alpha power in both resting and task states, suggesting impaired inhibitory control and cortical hyperactivation, which may contribute to cognitive deficits in DD. This widespread alpha power reduction, observed across multiple scalp areas in both resting and task states, underscores its potential as a neural biomarker for DD. Additionally, a less integrated resting-state beta band network topology was observed, reflecting disrupted large-scale connectivity in children with DD. Enhanced alpha band network integration during task performance, however, may indicate compensatory mechanisms engaged during cognitive challenges. Language familiarity modulated neural responses, with higher alpha and beta power during familiar Chinese stimuli, suggesting more efficient and automatic processing. Lower beta band network integration indicated reduced cognitive effort needed to process familiar Chinese stimuli. Correlation results suggest that a more integrated beta band network during rest is associated with better Chinese word reading fluency in children with DD. These findings provide key insights into spectral and topological markers of Chinese DD, offering a comprehensive view of brain activity and network abnormalities in Chinese children with DD, emphasizing the potential of alpha power as a stable neural biomarker and highlighting language familiarity’s role in modulating brain activity and network organization. Supplementary Material File (spectral_and_topological_abnormalities_of_resting_and_task_state_eeg_in_chinese_children_with__dd_updated.docx) Download 1.22 MB Information & Authors Information Version history V1 Version 1 11 February 2025 Peer review timeline Published Brain Topography Version of Record 10 Jun 2025 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Authors Affiliations Yaqi Yang 0009-0001-5564-364X The Chinese University of Hong Kong Department of Psychology View all articles by this author Shuting Huo The Chinese University of Hong Kong Department of Psychology View all articles by this author Jie Wang 0000-0001-6423-826X The Education University of Hong Kong Department of Psychology View all articles by this author Urs Maurer [email protected] The Chinese University of Hong Kong Department of Psychology View all articles by this author Metrics & Citations Metrics Article Usage 198 views 123 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Yaqi Yang, Shuting Huo, Jie Wang, et al. Spectral and Topological Abnormalities of Resting and Task State EEG in Chinese Children with Developmental Dyslexia. Authorea . 11 February 2025. DOI: https://doi.org/10.22541/au.173928974.48100613/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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