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Related Concept Videos

Intellectual Disability01:29

Intellectual Disability

Intellectual disability (ID) is a neurodevelopmental condition characterized by deficits in intellectual and adaptive functioning that manifest during the developmental period. This condition encompasses challenges in reasoning, memory, problem-solving, and learning, accompanied by impairments in everyday life skills, such as communication, self-care, and social interactions. Intellectual disability affects approximately 1% of the population in the United States, impacting an estimated 5...

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Related Experiment Video

Updated: Jun 14, 2026

Studying Brain Function in Children Using Magnetoencephalography
08:00

Studying Brain Function in Children Using Magnetoencephalography

Published on: April 8, 2019

QEEG Guided Neurofeedback to Enhance Intellectual Functioning in Children with Intellectual Disability.

Tanju Surmeli1, Ayben Ertem1, Nasira C Bukhari1

  • 1Living Health Center for Research and Education, Sisli, Turkey.

Clinical EEG and Neuroscience
|June 13, 2026
PubMed
Summary
This summary is machine-generated.

Quantitative electroencephalography (QEEG) guided neurofeedback (NF) significantly improved intellectual functioning and attention in children with intellectual disability (ID). This nonpharmacologic intervention showed promising results beyond standard treatments.

Keywords:
QEEGbiofeedbackintellectual disabilityneurofeedbackquantitative EEG

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Last Updated: Jun 14, 2026

Studying Brain Function in Children Using Magnetoencephalography
08:00

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Using Brain Activation (nir-HEG/Q-EEG) and Execution Measures (CPTs) in a ADHD Assessment Protocol
13:09

Using Brain Activation (nir-HEG/Q-EEG) and Execution Measures (CPTs) in a ADHD Assessment Protocol

Published on: April 1, 2018

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Biomedical Engineering

Background:

  • Intellectual disability (ID) presents significant challenges to cognitive development and daily functioning.
  • Standard treatments for ID often yield limited efficacy, necessitating exploration of novel interventions.
  • Quantitative electroencephalography (QEEG) offers a neurophysiological measure to guide targeted interventions.

Purpose of the Study:

  • To evaluate the efficacy of QEEG-guided neurofeedback (NF) in enhancing intellectual functioning and attention in children with ID.
  • To assess improvements in cognitive domains including IQ and attention-related measures.
  • To explore the relationship between neurophysiological changes and cognitive outcomes.

Main Methods:

  • Sixty-five children diagnosed with mild to severe ID (IQ 28-68) underwent 80-120 sessions of QEEG-guided NF.
  • Baseline and post-treatment assessments included QEEG, Wechsler Intelligence Scale for Children (WISC-R/IV), and Test of Variables of Attention (TOVA).
  • NF protocols targeted deviant QEEG parameters, prioritizing hypercoherence and amplitude abnormalities.

Main Results:

  • Mean full-scale IQ increased by approximately 10 points (+18.6%, p < 0.001), with significant gains across all WISC subdomains.
  • Two-thirds of participants experienced an IQ increase of at least 6 points.
  • QEEG analysis revealed normalization of resting-state networks, with reduced coherence and phase lag, and increased alpha power; reduced slow-wave coherence predicted IQ improvement.

Conclusions:

  • QEEG-guided NF demonstrates clinically meaningful improvements in intellectual functioning and attention for children with ID.
  • The observed cognitive gains surpass those typically expected from environmental enrichment alone.
  • Findings support QEEG-guided NF as a promising nonpharmacologic intervention for ID, meriting further investigation through randomized controlled trials.