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ORIGINAL RESEARCH article

Front. Psychiatry

Sec. Autism

Volume 16 - 2025 | doi: 10.3389/fpsyt.2025.1689000

Exploratory Quantitative EEG Characteristics in Children with Autism Spectrum Disorder

Provisionally accepted
Marta  KopańskaMarta Kopańska*Danuta  OchojskaDanuta OchojskaIzabela  SarzyńskaIzabela SarzyńskaJulia  TrojniakJulia TrojniakJacek  SzczygielskiJacek Szczygielski
  • University of Rzeszow, Rzeszów, Poland

The final, formatted version of the article will be published soon.

Autism Spectrum Disorders (ASD) are currently one of the most common childhood conditions. It is estimated that they affect approximately 1 in 31 children. Early and rapid diagnosis can increase a child's chances of reaching full developmental, social, and educational potential despite their condition. Our study aimed to describe a brainwave pattern in children with mild autism spectrum disorder (Level-1 according to DSM-5) based on quantitative electroencephalography (QEEG) analysis. The QEEG study is one of the valuable electrophysiological methods used in neurology and psychiatry, becoming more and more popular for diagnosing ASD. Our study included 48 children aged 7-10 years. Based on previous clinical examinations, 24 of them were diagnosed with mild ASD (mASD). Quantitative electroencephalography for Delta, Theta, Alpha, sensorimotor rhythm (SMR), Beta1, and Beta2 waves was performed using electrodes placed at thirteen recording points (frontal: FzF3F4, central: CzC3C4, parietal: P3PzP4, temporal: T3T4, and occipital: O1O2 points) with eyes open and closed. A comparison of the results between the mASD group and control group revealed significantly higher amplitude values for all Delta, Theta, Alpha, SMR, Beta1, and Beta2 wave measurements in the mASD population. Furthermore, the overrepresentation of Beta2-waves could be discerned in mASD children, as compared to their non-ASD-affected peers. The described pattern may help screen for mASD or confirm the diagnosis in the pediatric population of mASD-suspected patients. Additionally, it is worth noting that the results obtained demonstrate the importance of QEEG in detecting different patterns of brain activity in children with ASD, which plays a significant role in better understanding the heterogeneity of this disorder.

Keywords: Autism Spectrum Disorders, ASD, brainwave model, quantitative electroencephalography, qEEG

Received: 19 Aug 2025; Accepted: 22 Oct 2025.

Copyright: © 2025 Kopańska, Ochojska, Sarzyńska, Trojniak and Szczygielski. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Marta Kopańska, martakopanska@poczta.onet.pl

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