Aerobic fitness and intra-individual variability of neurocognition in preadolescent children

Robert Davis Moore, Chien Ting Wu, Matthew B. Pontifex, Kevin C. O'Leary, Mark R. Scudder, Lauren B. Raine, Christopher R. Johnson, Charles H. Hillman

Research output: Contribution to journalArticlepeer-review

Abstract

This study examined behavioral and neuroelectric intra-individual variability (IIV) in preadolescent children during a task requiring variable amounts of cognitive control. The current study further examined whether IIV was moderated by aerobic fitness level. Participants performed a modified flanker task, comprised of congruent and incongruent arrays, within compatible and incompatible stimulus-response conditions. Results revealed that congruent, relative to incongruent, conditions were associated with less IIV of RT. Further, less IIV of RT, P3 amplitude, and P3 latency was observed for the compatible relative to the incompatible condition. Higher fitness was associated with shorter and less variable RT only for the incompatible condition, with no fitness-related differences observed for P3 variability. The findings suggest that conditions requiring greater cognitive control are associated with increased IIV, and that higher fitness may be associated with greater integrity of cognitive control systems during development.

Original languageEnglish (US)
Pages (from-to)43-57
Number of pages15
JournalBrain and Cognition
Volume82
Issue number1
DOIs
StatePublished - Jun 1 2013

Keywords

  • Cognitive control
  • Event-related brain potential
  • Ex-Gaussian
  • Exercise
  • Intelligence Quotient
  • P3

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)
  • Cognitive Neuroscience

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