Clinical EEG and neuroscience最新文献

{"title":"Neuroelectrophysiological Characteristics of the Attention Network in Children with Obstructive Sleep Apnea Accompanied by ADHD-Like Symptoms.","authors":"Yunxiao Wu, Changming Wang, Dandi Ma, Zhifei Xu, Xiao-Lin Ning","doi":"10.1177/15500594261477456","DOIUrl":"https://doi.org/10.1177/15500594261477456","url":null,"abstract":"<p><p>ObjectiveTo investigate the neuroelectrophysiological characteristics of children with obstructive sleep apnea (OSA) accompanied by attention deficit hyperactivity disorder (ADHD)-like symptoms using attention network test (ANT) task-state electroencephalography analysis.MethodsAll participants completed the Attention Deficit Hyperactivity Disorder rating scale. Electroencephalography data were collected using 32 leads while the participants performed the ANT, followed by polysomnography.ResultsOf the 87 children, 21 were in the control group, 56 were in the OSA group, and 10 were in the OSA accompanied by ADHD-like symptoms group (OSA-co-ADHD). Each group had similar response time and accuracy for the different ANT conditions. At the O₂ electrode, compared with the controls, the latency of the P1 component in the OSA group was shorter (<i>P</i> < 0.05). During the alerting network stage, in the P_Z electrode, the beta band energy of the OSA-co-ADHD group was greater than that of the control group (Z   -3.067, <i>P</i> = 0.006). During the executive control network stage, at the C_Z electrode, the OSA-co-ADHD group exhibited higher alpha band energy than the OSA group (<i>P</i> < 0.05). During the alerting and orienting network phases, the connections of multiple brain regions changed (all <i>P</i> < 0.05), while the executive control network remained unchanged.ConclusionExcessive activation of the alerting network, reorganization of the orienting network in the brain, and compensation for inhibitory control during the process of the executive control network may be important characteristics of children with OSA accompanied by ADHD-like symptoms.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"15500594261477456"},"PeriodicalIF":1.7,"publicationDate":"2026-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148868269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early Frontal qEEG Markers Predict Delayed Cognitive Recovery After Mild-to-Moderate Ischemic Stroke: A Prospective Cohort Study.","authors":"Vy Tuong Nguyen, Trang Ho Thu Quach, Hiep Do, Kien Trung Duong, Khoa Nhat Bui, An Gia Pham, Huong Ha, Thang Cong Tran","doi":"10.1177/15500594261480203","DOIUrl":"https://doi.org/10.1177/15500594261480203","url":null,"abstract":"<p><p>Background and ObjectivePost-stroke cognitive impairment affects 30%-60% of survivors, yet predicting which patients will demonstrate delayed recovery remains challenging. We investigated whether early quantitative electroencephalography (qEEG) markers can identify patients with cognitive recovery potential during the critical 3-6 month post-stroke period.MethodsThis prospective cohort study enrolled patients with first-time supratentorial ischemic stroke (NIHSS <15). Resting-state EEG was recorded at 8 ± 1 days post-stroke to calculate regional qEEG indices: peak alpha frequency (PAF), delta + theta/alpha + beta ratio (DTABR), and theta-alpha dominant frequency variability (DFV). The Montreal Cognitive Assessment (MoCA) was administered at 3 and 6 months post-stroke. Cognitive recovery was defined as ≥2-point MoCA improvement. Stepwise logistic regression identified recovery predictors, with model performance evaluated using area under the receiver operating characteristic curve (AUC).ResultsOf 96 enrolled patients, 53 (55.2%) demonstrated cognitive recovery, with substantial improvements in delayed recall/memory, naming, abstraction, and visuospatial/executive function. Patients with recovery showed lower cognitive performance at 3 months but reached comparable levels by 6 months post-stroke. Lower frontal PAF (adjusted OR 0.29, 95% CI 0.16, 0.47), reduced frontal DTABR (adjusted OR 0.84, 95% CI 0.72, 0.96), and elevated frontal DFV (adjusted OR 4.59, 95% CI 1.27, 20.81) predicted cognitive recovery with good discriminatory ability (AUC = 0.831, 95% CI: 0.748, 0.914).ConclusionsEarly frontal qEEG measures identified stroke patients with delayed cognitive recovery potential during the 3-6 month window, despite initially poor performance. These findings suggest that early qEEG assessment could help inform personalized rehabilitation planning and identify candidates for extended cognitive rehabilitation interventions.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"15500594261480203"},"PeriodicalIF":1.7,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148842385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Emergent EEG in Status Epilepticus: Off-Hours Delays Limit Clinical Utility.","authors":"Teemu Pöytäkangas, Pabitra Basnyat, Jukka Saarinen, Sirpa Rainesalo, Jukka Peltola","doi":"10.1177/15500594261467533","DOIUrl":"https://doi.org/10.1177/15500594261467533","url":null,"abstract":"<p><p>BackgroundTo evaluate the use, diagnostic yield, and timing of EEG in emergency department (ED) patients receiving second-line intravenous antiseizure medication (IV ASM).MethodsWe retrospectively reviewed patients aged ≥16 years who received IV ASM at Tampere University Hospital over one year. Episodes were categorized by status epilepticus (SE) subtype and arrival time (office vs off-hours). Timing of ASM/EEG and EEG's diagnostic contribution were analyzed.ResultsWe identified 132 episodes in 116 patients (41% female; median age 66 years). Convulsive SE (CSE) was most common (n = 41), followed by nonconvulsive SE (NCSE, n = 21), comatose SE (n = 10), and focal aware SE (FASE, n = 8). Recurrent seizures (n = 32) and postictal states (n = 20) were also included to highlight diagnostic challenges. Median IV ASM timing was 55 min post-ED arrival. EEG was substantially delayed (median 13 h 34 min). 70% arrived off-hours, when EEGs were performed less frequently (63% vs 87%; p = 0.006) and later (16 h 12 min vs 2 h 41 min; p < 0.001). In 94% of off-hours cases, ASM was given before EEG. EEG was diagnostic in 86% NCSE and 80% comatose SE cases. Post-treatment, EEG revealed ongoing SE in 39% overall (15% CSE).ConclusionsEEG is essential for diagnosing NCSE and comatose SE and for assessing treatment response in all SE types. However, marked delays, particularly during off-hours, limit its clinical utility. Improving rapid EEG access in ED may enhance diagnostic accuracy and guide timely therapeutic decisions.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"15500594261467533"},"PeriodicalIF":1.7,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148842356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mu and Beta Oscillatory Changes During a Motor Task Following Rehabilitation in Chronic MCA Stroke: Insights from EEG.","authors":"Rebeca Pardo-Garcia, Maria Ruiz-Izquierdo, Mercedes Martín García de la Vega, Rocio Calvillo-Torres, George Kontaxakis, Idoya Barca Fernandez, Eva M Moreno, Lucia Garvin Ocampos, Miguel A Pozo","doi":"10.1177/15500594261471204","DOIUrl":"https://doi.org/10.1177/15500594261471204","url":null,"abstract":"<p><p>BackgroundStroke in the middle cerebral artery (MCA) often leads to persistent upper limb disability. While clinical scales such as the Fugl-Meyer Assessment for the Upper Extremity (FM-UE) track motor recovery, high-density EEG provides insight into cortical motor-activation patterns. Event-related desynchronization/synchronization (ERD/ERS) in mu and beta bands may offer insight into recovery mechanisms.Objectivea) To characterize changes in mu and beta oscillations following upper limb rehabilitation in chronic MCA stroke patients, and b) To identify ERD features most closely associated with residual motor function.MethodsTen chronic MCA stroke patients and seven healthy controls underwent EEG during motor-imagery and active-movement tasks. Stroke patients received 15 sessions of rehabilitation over 8 weeks. EEG data were processed using EEGLAB/MATLAB and analyzed with ERD/ERS metrics. Spearman correlations with FM-UE scores were calculated.ResultsChronic stroke patients showed pathological ERS in ipsilesional beta rhythms that shifted toward ERD after rehabilitation, paralleling significant motor recovery. Although correlations did not reach significance, alpha oscillations in the ipsilesional hemisphere most closely related to functional gains.ConclusionOur findings suggest that rehabilitation in chronic stroke patients induces real cortical changes reflected in EEG oscillatory dynamics. Although preliminary, ipsilesional alpha and beta changes may represent biomarkers of genuine recovery, distinguishing neuroplastic improvement from compensatory mechanisms and guiding future therapeutic strategies.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"15500594261471204"},"PeriodicalIF":1.7,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148708957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lower Resting-State Alpha Reactivity in Chronic Widespread Pain Compared to At-Risk and Healthy Individuals.","authors":"Nayab Begum, Anthony Jones, Christopher A Brown, Jonathan N Rajan, Katherine Wainwright, Ariane Delgado Sánchez, Emily Pye, Timothy Rainey, Jason R Taylor","doi":"10.1177/15500594261468061","DOIUrl":"https://doi.org/10.1177/15500594261468061","url":null,"abstract":"<p><p>BackgroundChronic widespread pain (CWP), the hallmark of Fibromyalgia (FM), is poorly understood. Altered spectral power of cortical oscillations during rest have been identified in chronic pain, yet it is unknown whether people at high risk of future CWP show FM-like Electroencephalogram (EEG) features. This cross-sectional observational study is the first to examine spectral changes in individuals at high risk of CWP.MethodsDifferences in resting-state oscillatory power in FM (n = 19), At-Risk (AR; n = 21) and Healthy Control (HC; n = 17) groups were examined. Risk factors included non-CWP pain, somatic symptoms, illness behaviour and sleep problems. Patients were not on centrally acting medication. EEG recordings were obtained in eyes-open and closed conditions (6 min of each) to assess alpha reactivity (eyes-closed minus eyes-open). Group differences in scalp-averaged spectral power were examined in several frequency bands, and topographic analysis was performed on alpha.ResultsAlpha reactivity was significantly lower in FM compared to AR and HC groups. Topographic analysis of alpha found that this interaction peaked in right-frontal electrodes, where there was a positive (uncorrected) correlation between alpha reactivity and morning salivary cortisol levels in AR individuals, not present in FM.ConclusionsAs expected, alpha reactivity differed between groups; however, contrary to our expectations, AR did not show FM-like resting alpha physiology, but were instead similar to HC. The (uncorrected) positive association of right-frontal alpha reactivity and cortisol hints at a pattern related to resilience to CWP in high-risk individuals, which larger, perhaps longitudinal studies may confirm.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"15500594261468061"},"PeriodicalIF":1.7,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148451019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early EEG Detection of Treatable Non-Convulsive Status Epilepticus in Severe COVID-19-Associated Encephalopathy: A Case Report.","authors":"Yu-Cheng Chu, Chan-Lin Chu, Shang-Yeong Kwan","doi":"10.1177/15500594261467526","DOIUrl":"https://doi.org/10.1177/15500594261467526","url":null,"abstract":"<p><p>BackgroundPersistent depressed consciousness in severe coronavirus disease 2019 (COVID-19) is commonly attributed to hypoxemia, systemic inflammation, sedative exposure, or metabolic disturbance. Non-convulsive status epilepticus (NCSE), however, may be overlooked without electroencephalography (EEG). This diagnostic principle also applies to persistent unexplained encephalopathy more broadly, particularly when impaired consciousness remains disproportionate to systemic illness.CaseAn 85-year-old woman with Parkinsonism, diabetes mellitus, and prior cerebrovascular disease developed severe COVID-19 pneumonia followed by persistent coma during intensive care. Brain computed tomography showed chronic atrophic change without acute structural lesions, and laboratory and cerebrospinal fluid findings did not identify a major alternative explanation for coma. On the day of EEG, arterial blood gas analysis showed adequate oxygenation without hypercapnia. EEG on hospital day 10 demonstrated abundant right-hemispheric rhythmic/periodic discharges at approximately 2 Hz and focal electrographic seizures arising from the right temporal region with spatiotemporal evolution, consistent with NCSE. Levetiracetam, lacosamide, and midazolam infusion were administered.OutcomeMidazolam infusion was followed by electrographic seizure resolution but did not produce immediate clinical awakening during sedation; spontaneous eye opening emerged approximately 4 days later. Follow-up EEG on hospital day 13 showed seizure resolution with residual diffuse slowing and a sporadic right-hemispheric spike.ConclusionThis case highlights early EEG as a practical diagnostic and treatment-monitoring tool in severe COVID-19-associated encephalopathy when depressed consciousness is persistent or disproportionate to systemic illness. More generally, EEG should be considered in persistent unexplained coma or encephalopathy after stabilization of cardiopulmonary factors.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"15500594261467526"},"PeriodicalIF":1.7,"publicationDate":"2026-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148414227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Bibliometric Examination of EEGLAB Publications in Scopus and WoS Indexed Sources: A 20-Year Study of Asia-Pacific and Arabian Countries.","authors":"Mohammad Fayaz, Nadhim Azeez Sayel","doi":"10.1177/15500594261428714","DOIUrl":"10.1177/15500594261428714","url":null,"abstract":"<p><p>IntroductionEEGLAB is a widely used software for analyzing electroencephalography (EEG) datasets, with over 20 years of global use. This bibliometric study investigates EEGLAB publications in the Asia-Pacific and Arabian regions, focusing on Scopus and Web of Science (WoS) indexed sources, to understand regional contributions and trends in EEG research across 80 countries and territories.MethodsBibliometric analysis was conducted using the Bibliometrix package in R, focusing on citations from WoS and Scopus indexed sources. The study covers data from the United Nations Economic and Social Commission for Asia and the Pacific (ESCAP) and West Asia (ESCWA), including 58 ESCAP countries and 22 ESCWA countries, with data collected until March 2024. Bibliometric indices such as Lotka's law, Bradford's law, co-citation networks, and in-depth historiography were analyzed to explore global and regional trends.ResultsEEGLAB's main article has received 22 298 citations on Google Scholar, with 14 958 (67.1%) citations in WoS and 15 827 (70.1%) in Scopus. The top ten WoS countries by citations are China, Australia, Japan, Republic of Korea, India, Iran, Russian Federation, Singapore, New Zealand, and Malaysia/Türkiye. Recent research themes include emotion recognition, driver distraction detection, deep learning, schizophrenia detection, and the cognitive impacts of COVID-19. China and the USA are the leading international collaborators.ConclusionsApproximately 35% of WoS documents and 41% of authors are from the ESCAP and ESCWA regions. The average citation per document in these regions is half of the global average. The study highlights EEGLAB's growing role in EEG research and collaborative trends.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"329-340"},"PeriodicalIF":1.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147792215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electroencephalography in China: Spread, Development and Prospects.","authors":"Yutong Yao, Yan Cui, Kaile Wang, Yunwei Chen, Ruxiang Xu","doi":"10.1177/15500594251343170","DOIUrl":"10.1177/15500594251343170","url":null,"abstract":"<p><p>People celebrate the 100th anniversary of the discovery of human EEG from various perspectives and envision its promising future. In 1948, 20 years after the discovery of human EEG, the first EEG equipment was introduced in China. A long and slow period of development followed. The number of EEG papers from China, about 20 a year, represented about 1/80 of the global total by the 70th anniversary of EEG in 1994. After a steady rise, Chinese EEG research reached about 1/3 of the global total by the 100th anniversary of EEG in 2024. Academic organizations related to EEG were established during this process, along with the widespread use of EEG in thousands of clinical hospitals and closely collaborating with international colleagues. Chinese and global EEG research are being bridged in this article to benefit mankind in the future by jointly creating more advancements in EEG technology.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"314-320"},"PeriodicalIF":1.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144103318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cognitive Neuroelectrophysiological Characteristics of Patients with Cerebral Small Vessel Disease Accompanied by Depression.","authors":"Pingshu Zhang, Lingyun Cao, Jing Wang, Tiantian Wang, Jing Xue, Ya Ou, Cuiping Yan, Hongrui Liu, Xiaodong Yuan","doi":"10.1177/15500594251388216","DOIUrl":"10.1177/15500594251388216","url":null,"abstract":"<p><p>ObjectiveDepressive symptoms and cognitive impairment are two common complications of cerebral small vascular disease (CSVD). This study aimed to investigate the P300 representation in CSVD patients with depressive symptoms and its relationship with depressive symptoms.MethodsWe selected 242 patients with CSVD (depression: n = 56; non-depression: n = 186) and 30 healthy controls. The Self-Rating Depression Scale and Self-Rating Anxiety Scale scales were used to assess depressive and anxiety symptoms.The latency and amplitude of P300 components were measured using event-related potential (ERP) technique to assess cognitive dysfunction. Cognitive function was evaluated using Mini-mental state examination and Event-Related Potential P300 waves latency & amplitude. Finally, logistic regression model was used to analyze the relationship between P300 representation and depressive symptoms in CSVD patients.ResultsCompared with NPSD group and Control group, the latency of P300 (P3a and P3b wave groups) in PSD group was longer and the amplitude was lower. Multivariate Logistic regression analysis showed that temporal lobe infarction (OR = 10.878, 95% CI = 2.890-40.939), brainstem infarction (OR = 4.185, 95% CI = 1.544-11.341), SAS score (OR = 1.275, 95% CI = 1.174-1.385),and P3b amplitude (OR = 0.779, 95% CI = 0.635-0.957) were independently correlated with depressive symptoms in CSVD patients (<i>P</i> < .05).ConclusionCSVD patients with depressive symptoms had worse cognitive function, and abnormalities in P300 waves amplitude and latency were more pronounced. The amplitude of P3b in patients with CSVD is decreased, which is significantly correlated with the occurrence of depression.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"358-367"},"PeriodicalIF":1.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145369167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effects of Abstinence status and Sleep Quality on Resting State Alpha Power in Cocaine Use Disorder.","authors":"Heather E Webber, Danielle A Kessler, Joy M Schmitz, Scott D Lane, Robert Suchting","doi":"10.1177/15500594261450039","DOIUrl":"10.1177/15500594261450039","url":null,"abstract":"<p><p>RationaleSubstance use disorders are associated with notable sleep disturbances. Electroencephalogram (EEG) alpha power occurs during wakeful rest, is associated with sleepiness, and indicates neural deactivation.ObjectivesThe goal of the current study was to assess the effects of abstinence on the relationship between alpha power and subjective sleep quality in participants with cocaine use disorder (CUD).MethodsParticipants with CUD (n = 32) who were recently or non-abstinent completed a resting-state EEG paradigm (90 s eyes open/closed). Absolute alpha power was calculated using the fast Fourier transform and by averaging within the power spectra of the alpha band (8-13 Hz). The participants rated their subjective sleep quality on a scale of 1-10 for the past 7 nights. Bayesian linear mixed models evaluated the unique and moderating effects of sleep quality, group (abstinent, non-abstinent), eye condition (open, closed), and electrode location on resting-state alpha power.ResultsResults indicated that subjective sleep quality did not differ between groups and that alpha power was decreased in the non-abstinent group. However, in the abstinent group only, better sleep quality was associated with decreased alpha power. There was no evidence of a relationship between sleep and alpha power in the non-abstinent group. This effect was similar across eye conditions, but was stronger at the right, posterior, and superior electrodes.ConclusionsThese results could indicate a return to homeostasis during early abstinence or that those currently using might not get as much benefit from sleep, highlighting resting-state alpha power as a potential target for addressing sleep-related issues.</p>","PeriodicalId":93940,"journal":{"name":"Clinical EEG and neuroscience","volume":" ","pages":"341-350"},"PeriodicalIF":1.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13237756/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147876870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}