Electroencephalographic abnormalities and clinical phenotypes in children with autism spectrum disorder: a single center cohort study - Report - MDSpire

Electroencephalographic abnormalities and clinical phenotypes in children with autism spectrum disorder: a single center cohort study

  • By

  • Natalia Wizner

  • Michał Wizner

  • Julia Rokosz

  • Magdalena Matlakiewicz

  • Magdalena Hankus

  • Justyna Paprocka

  • May 29, 2026

  • 0 min

Share

Clinical Report: EEG Findings and Clinical Characteristics in Pediatric Autism Spectrum Disorder

Overview

Revise to emphasize the clinical significance of EEG abnormalities and their implications for treatment.

Background

Electroencephalographic (EEG) abnormalities are common in children with ASD, even without clinical seizures, highlighting the importance of understanding these patterns. The clinical implications of EEG findings can inform the management of ASD, particularly regarding associated conditions like epilepsy and intellectual disability. Identifying these relationships can enhance the care and treatment strategies for affected children.

Data Highlights

EEG PatternSleep Disorders (%)Intellectual Disability Severity
Non-paroxysmal changes20Higher severity in epilepsy group
Paroxysmal changes5.9Higher prevalence in epilepsy group (62%)
Normal recordings7Lower severity in non-epilepsy group

Key Findings

  • Sleep disorders were significantly associated with EEG pattern type (p = 0.041).
  • Non-paroxysmal EEG changes occurred most frequently in children with sleep disorders (20%).
  • Children with comorbid epilepsy had higher rates of intellectual disability severity (p = 0.004).
  • Paroxysmal EEG abnormalities were more prevalent in the epilepsy group (62% vs. 38%, p = 0.01).
  • No significant associations were found between EEG abnormalities and speech delay, aggression, sensory integration disorders, or motor deficits.

Clinical Implications

The findings suggest that EEG abnormalities, particularly non-paroxysmal changes, may indicate underlying sleep disorders in children with ASD. Clinicians should consider comprehensive neurological evaluations for children with ASD, especially those with comorbid epilepsy, to better address associated intellectual disabilities.

Conclusion

This study underscores the importance of EEG analysis in understanding the clinical characteristics of children with ASD. Further research may elucidate more nuanced relationships between EEG findings and various clinical manifestations.

Related Resources & Content

  1. Frontiers in Psychiatry, 2026 -- Factors influencing the sensory profile in patients with autism spectrum disorder from 16 months to 14 years: results of an observational study
  2. BMC Psychiatry, 2025 -- Assessment of psychometric properties of autism spectrum diagnostic profile (ASDP) among Egyptian children aged 2–12 years
  3. BMC Psychiatry, 2025 -- Investigation of Plasma and Urinary Neurotransmitter Levels in Chinese Pediatric Patients with Autism Spectrum Disorder
  4. Frontiers in Psychiatry, 2026 -- Atypical modulation of electrodermal reactivity during exposure to graded unisensory and multisensory stimuli in autistic children and adolescents
  5. American Academy of Pediatrics, 2025 -- Identification, Evaluation, and Management of Children With Autism Spectrum Disorder
  6. ScienceDirect, 2024 -- Overnight Electroencephalogram to Forecast Epilepsy Development in Children with Autism Spectrum Disorders
  7. Identification, Evaluation, and Management of Children With Autism Spectrum Disorder
  8. Overnight Electroencephalogram to Forecast Epilepsy Development in Children with Autism Spectrum Disorders

Original Source(s)

Related Content