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Event Related Potentials (ERPs) and other EEG Based Methods for Extracting Biomarkers of Brain Dysfunction: Examples from Pediatric Attention Deficit/Hyperactivity Disorder (ADHD)
10:02

Event Related Potentials (ERPs) and other EEG Based Methods for Extracting Biomarkers of Brain Dysfunction: Examples from Pediatric Attention Deficit/Hyperactivity Disorder (ADHD)

Published on: March 12, 2020

NREM sleep instability is reduced in children with attention-deficit/hyperactivity disorder

Silvia Miano1, Renato Donfrancesco, Oliviero Bruni

  • 1Department of Pediatric, Sleep Disease Centre, University of Rome La Sapienza-S Andrea Hospital, Rome, Italy. silvia.miano@tiscali.it

Sleep
|June 27, 2006
PubMed

Insights

Children with attention-deficit/hyperactivity disorder (ADHD) exhibit reduced sleep instability, indicated by lower cyclic alternating pattern (CAP) rates. This finding supports a hypoarousal state in pediatric ADHD.

Area of Science:

  • Neuroscience
  • Pediatric Sleep Medicine
  • Child Psychology

Background:

  • Attention-deficit/hyperactivity disorder (ADHD) is a prevalent neurodevelopmental disorder.
  • Sleep disturbances are frequently reported in children with ADHD, impacting cognitive function and behavior.
  • Cyclic alternating pattern (CAP) analysis quantifies non-rapid eye movement (NREM) sleep instability, reflecting brain arousal dynamics.

Purpose of the Study:

  • To investigate NREM sleep instability using CAP analysis in children diagnosed with ADHD.
  • To compare CAP parameters between a cohort of children with ADHD and age- and sex-matched healthy controls.

Main Methods:

  • A prospective, case-control study design was employed.
  • Twenty children with ADHD and 20 healthy controls underwent two consecutive nights of polysomnography in a sleep laboratory.
  • Sleep macrostructure and CAP were visually scored according to established criteria.

Main Results:

  • Children with ADHD demonstrated reduced total sleep duration and an increased rate of sleep stage shifts.
  • Significantly lower total CAP rates and CAP rates during sleep stage 2 were observed in the ADHD group compared to controls.
  • The ADHD group exhibited fewer CAP sequences and a reduced total A1 index, particularly during light sleep stages (1 and 2).

Conclusions:

  • Children with ADHD display objectively lower NREM sleep instability, characterized by reduced CAP rates and fewer CAP sequences.
  • These findings lend support to the hypothesis of a hypoarousal state in pediatric ADHD.
  • CAP analysis may serve as a valuable tool for understanding the neurophysiological underpinnings of ADHD.
Abstract

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