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Age, physical fitness, and attention: P3a and p3b

Academic Article
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Overview

authors

  • Pontifex, M. B.
  • Hillman, C. H.
  • Polich, John

publication date

  • March 2009

journal

  • Psychophysiology  Journal

abstract

  • The influence of age and fitness on the neuroelectric correlates of attentional orienting and processing during stimulus discrimination were investigated. Younger and older adult participants completed a maximal aerobic exercise test and were separated into higher- and lower-fit groups according to their cardiorespiratory fitness. Task performance and event-related potential measures were obtained during two- and three-stimulus oddball tasks. Results indicated that fitness may ameliorate or protect against cognitive aging for simple stimulus discriminations. Increases in task difficulty indicated that fitness may not be sufficient to overcome age-related deficits in stimulus discrimination. Further, fitness did not influence attentional orienting. The findings suggest that fitness-related changes in cognitive function may originate from other attentional mechanisms. Theoretical implications are discussed.

subject areas

  • Aged
  • Aging
  • Attention
  • Cognition
  • Event-Related Potentials, P300
  • Female
  • Humans
  • Male
  • Middle Aged
  • Physical Fitness
  • Psychomotor Performance
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Research

keywords

  • Age
  • Attentional orienting
  • Fitness
  • P300
  • P3a
  • P3b
  • Stimulus discrimination
  • Task difficulty
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Identity

PubMed Central ID

  • PMC2763440

International Standard Serial Number (ISSN)

  • 0048-5772

Digital Object Identifier (DOI)

  • 10.1111/j.1469-8986.2008.00782.x

PubMed ID

  • 19170947
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Additional Document Info

start page

  • 379

end page

  • 387

volume

  • 46

issue

  • 2

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