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Updated: Feb 19, 2026

Event-related Potentials During Target-response Tasks to Study Cognitive Processes of Upper Limb Use in Children with Unilateral Cerebral Palsy
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A processing schema for children in the auditory equiprobable Go/NoGo task: ERP components and behaviour.

Robert J Barry1, Frances M De Blasio1, Jack S Fogarty1

  • 1Brain & Behaviour Research Institute, and School of Psychology, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia.

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
|November 11, 2017
PubMed
Summary

This study refined auditory Go/NoGo task analysis by separating principal component analyses (PCA) for Go and NoGo event-related potentials (ERPs). This improved child-specific models, revealing new insights into inhibitory control and error evaluation.

Keywords:
ChildrenEquiprobable Go/NoGo taskEvent-related potentials (ERPs)Misallocation of variancePrincipal components analyses (PCA)Sequential processing schema

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Area of Science:

  • Cognitive Neuroscience
  • Developmental Psychology
  • Psychophysiology

Background:

  • Sequential processing models using principal component analysis (PCA) analyze auditory Go/NoGo event-related potentials (ERPs).
  • Previous methods combined Go and NoGo data, potentially distorting component timing, topography, and amplitude.
  • A revised approach is needed to accurately model cognitive processes in children.

Purpose of the Study:

  • To reanalyze child Go/NoGo ERP data using separate PCAs for Go and NoGo conditions.
  • To identify novel links between ERP components and behavioral measures.
  • To develop a child-specific sequential processing model for the Go/NoGo task.

Main Methods:

  • Reanalysis of existing child Go/NoGo ERP data.
  • Application of separate Principal Component Analyses (PCAs) to Go and NoGo conditions.
  • Utilizing multiple regression to correlate ERP components with behavioral data.

Main Results:

  • Confirmed the link between NoGo N2b component and inhibitory processing.
  • Identified novel associations: NoGo Negative Slow Wave with error evaluation and Go N1-1 with reaction time variability.
  • Established the benefit of separate PCAs for Go and NoGo data.

Conclusions:

  • Separate PCAs for Go and NoGo data are recommended for accurate ERP analysis.
  • A child-specific sequential processing model suggests earlier divergence of Go/NoGo pathways and an added inhibition/evaluation stage.
  • The refined model offers a framework for future two-choice reaction task studies in children.