{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T03:47:08Z","timestamp":1775274428689,"version":"3.50.1"},"reference-count":168,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T00:00:00Z","timestamp":1762041600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100009687","name":"Wroclaw Medical University","doi-asserted-by":"publisher","award":["SUBZ.L010.25.053"],"award-info":[{"award-number":["SUBZ.L010.25.053"]}],"id":[{"id":"10.13039\/501100009687","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Restless legs syndrome (RLS) is a sensorimotor disorder with evening-predominant symptoms; convergent models implicate brain iron dysregulation and alter dopaminergic\/glutamatergic signaling. Because EEG provides millisecond-scale access to cortical dynamics, we synthesized waking EEG\/ERP findings in RLS (sleep EEG excluded). A structured search across major databases (1980\u2013July 2025) identified clinical EEG studies meeting prespecified criteria. Across small, mostly mid- to late-adult cohorts, four reproducible signatures emerged: (i) cortical hyperarousal at rest (fronto-central beta elevation with a dissociated vigilance profile); (ii) attentional\/working memory ERPs with attenuated and delayed P300 (and reduced frontal P2), pointing to fronto-parietal dysfunction; (iii) network inefficiency (reduced theta\/gamma synchrony and lower clustering\/longer path length) that scales with symptom burden; and (iv) motor system abnormalities with exaggerated post-movement beta rebound and peri-movement cortical\u2013autonomic co-activation, together with evening-vulnerable early visual processing during cognitive control. Dopamine agonist therapy partially normalizes behavior and ERP amplitudes. These converging EEG features provide candidate biomarkers for disease burden and treatment response and are consistent with models linking brain iron deficiency to thalamo-cortical timing failures. This mechanistic review did not adhere to PRISMA or PICO frameworks and did not include a formal risk-of-bias or quantitative meta-analysis; samples were small, heterogeneous, and English-only.<\/jats:p>","DOI":"10.3390\/ijms262110675","type":"journal-article","created":{"date-parts":[[2025,11,3]],"date-time":"2025-11-03T13:15:14Z","timestamp":1762175714000},"page":"10675","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Neural Correlates of Restless Legs Syndrome (RLS) Based on Electroencephalogram (EEG)\u2014A Mechanistic Review"],"prefix":"10.3390","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-5320-3658","authenticated-orcid":false,"given":"James","family":"Chmiel","sequence":"first","affiliation":[{"name":"Institute of Neurofeedback and tDCS Poland, Ul. 3 Maja 25\u201327, 70-215 Szczecin, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6996-8920","authenticated-orcid":false,"given":"Donata","family":"Kurpas","sequence":"additional","affiliation":[{"name":"Department of Family and Pediatric Nursing, Faculty of Health Sciences, Wroc\u0142aw Medical University, 51-618 Wroclaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"109568","DOI":"10.1016\/j.isci.2024.109568","article-title":"Unveiling the pathophysiology of restless legs syndrome through transcriptome analysis","volume":"27","author":"Mogavero","year":"2024","journal-title":"iScience"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Tang, M., Sun, Q., Zhang, Y., Li, H., Wang, D., Wang, Y., and Wang, Z. 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