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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)

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

Multiple deficits in ADHD: executive dysfunction, delay aversion, reaction time variability, and emotional deficits.

Douglas Sjöwall¹, Linda Roth, Sofia Lindqvist

¹Department of Clinical Neuroscience and Stockholm Brain Institute, Karolinska Institutet, Stockholm, Sweden. douglas.sjowall@ki.se

Journal of Child Psychology and Psychiatry, and Allied Disciplines

|October 16, 2012

Summary

Attention-Deficit/Hyperactivity Disorder (ADHD) is heterogeneous, involving multiple neuropsychological deficits. Emotional functioning is a key, independent component distinguishing children with ADHD from controls.

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Area of Science:

Neuroscience
Child Psychology
Psychiatry

Background:

Attention-Deficit/Hyperactivity Disorder (ADHD) is recognized as a heterogeneous condition.
Previous research has not fully explored the independent contributions of various neuropsychological deficits in ADHD.
The role of emotional functioning as a distinct component of ADHD requires further investigation.

Purpose of the Study:

To examine the independent effects of diverse neuropsychological deficits in children with ADHD.
To determine if deficits in emotional functioning represent a dissociable aspect of ADHD.
To enhance understanding of ADHD heterogeneity.

Main Methods:

A cohort of 102 children diagnosed with ADHD (aged 7–13 years) and an age- and gender-matched control group participated.
Neuropsychological assessments included executive functions (working memory, inhibition, shifting), delay aversion, and reaction time variability.
Parent-reported emotion regulation and an emotion recognition test were administered.

Main Results:

Children with ADHD showed significant differences compared to controls across most measures, excluding delay aversion and disgust recognition.
Executive functioning, reaction time variability, and emotional functioning independently differentiated ADHD from control groups.
No significant effects of gender or group-by-gender interactions were observed.

Conclusions:

The findings support the view of ADHD as a heterogeneous disorder stemming from multiple neuropsychological impairments.
Emotional functioning emerges as a critical area, necessitating its inclusion in future ADHD theoretical models.
This research highlights the multifaceted nature of ADHD beyond core executive function deficits.