title: Sequential processing in the equiprobable auditory Go/NoGo task: children vs. adults.
abstract: OBJECTIVE
  To compare sequential processing in the unwarned auditory equiprobable Go/NoGo task in children and adults, in the context of a recently developed adult schema.
  
  
  METHODS
  Adult and child samples completed an equiprobable auditory Go/NoGo task while EEG was recorded from 19 channels. Go and NoGo ERPs were decomposed using unrestricted Varimax-rotated PCAs for the groups separately, and in combination. The separate adult and child components were compared using the Congruence Coefficient. Brain sources of each assessed component were examined using eLORETA.
  
  
  RESULTS
  Corresponding adult/child components were tentatively identified: two N1 subcomponents (N1-1, PN) and P2, followed by N2, P3 (separate P3a/P3b in children), the classic Slow Wave (SW), and a diffuse Late Positivity (LP). While early and late components showed similarities, the intermediate P2 and N2 differed substantially in their stimulus effects.
  
  
  CONCLUSIONS
  Aspects of "Go" vs. "NoGo" categorisation differ between adults and children, but subsequent processing reflected in the different Go/NoGo P3 components, and their sequellae, are similar.
  
  
  CONCLUSIONS
  This is the first detailed examination of child responses in this paradigm. The tested schema appears relatively robust in adults, and the child results may aid our understanding of developmental aspects of cognitive processing in normal and atypical individuals.
authors.affiliation: Centre for Psychophysics, Psychophysiology, and Psychopharmacology, Brain & Behaviour Research Institute, and School of Psychology, University of Wollongong, Wollongong 2522, Australia. Electronic address: robert_barry@uow.edu.au.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Barry
authors.affiliation: Centre for Psychophysics, Psychophysiology, and Psychopharmacology, Brain & Behaviour Research Institute, and School of Psychology, University of Wollongong, Wollongong 2522, Australia.
authors.forename: Frances M
authors.initials: FM
authors.lastname: De Blasio
authors.affiliation: Centre for Psychophysics, Psychophysiology, and Psychopharmacology, Brain & Behaviour Research Institute, and School of Psychology, University of Wollongong, Wollongong 2522, Australia.
authors.forename: Jay P
authors.initials: JP
authors.lastname: Borchard
mesh_terms: D000293:Adolescent; D000328:Adult; D001307:Auditory Perception / Q000502:physiology*; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000502:physiology*; D002648:Child; D004569:Electroencephalography / Q000379:methods*; D018913:Event-Related Potentials, P300 / Q000502:physiology; D005071:Evoked Potentials / Q000502:physiology*; D056344:Executive Function / Q000502:physiology*; D005260:Female; D006801:Humans; D007266:Inhibition, Psychological; D008297:Male; D025341:Principal Component Analysis; D014054:Tomography; D055815:Young Adult
keywords: Adults; Children; ERPs; Equiprobable Go/NoGo paradigm; Exact Low Resolution Electromagnetic Tomography (eLORETA); Principal Components Analysis (PCA)