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Hemispheric asymmetry reduction in older adults: the HAROLD model.

Publication ,  Journal Article
Cabeza, R
Published in: Psychology and aging
March 2002

A model of the effects of aging on brain activity during cognitive performance is introduced. The model is called HAROLD (hemispheric asymmetry reduction in older adults), and it states that, under similar circumstances, prefrontal activity during cognitive performances tends to be less lateralized in older adults than in younger adults. The model is supported by functional neuroimaging and other evidence in the domains of episodic memory, semantic memory, working memory, perception, and inhibitory control. Age-related hemispheric asymmetry reductions may have a compensatory function or they may reflect a dedifferentiation process. They may have a cognitive or neural origin, and they may reflect regional or network mechanisms. The HAROLD model is a cognitive neuroscience model that integrates ideas and findings from psychology and neuroscience of aging.

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Published In

Psychology and aging

DOI

EISSN

1939-1498

ISSN

0882-7974

Publication Date

March 2002

Volume

17

Issue

1

Start / End Page

85 / 100

Related Subject Headings

  • Verbal Learning
  • Tomography, Emission-Computed
  • Pattern Recognition, Visual
  • Nerve Net
  • Models, Neurological
  • Mental Recall
  • Magnetic Resonance Imaging
  • Humans
  • Experimental Psychology
  • Dominance, Cerebral
 

Citation

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Cabeza, R. (2002). Hemispheric asymmetry reduction in older adults: the HAROLD model. Psychology and Aging, 17(1), 85–100. https://doi.org/10.1037//0882-7974.17.1.85
Cabeza, Roberto. “Hemispheric asymmetry reduction in older adults: the HAROLD model.Psychology and Aging 17, no. 1 (March 2002): 85–100. https://doi.org/10.1037//0882-7974.17.1.85.
Cabeza R. Hemispheric asymmetry reduction in older adults: the HAROLD model. Psychology and aging. 2002 Mar;17(1):85–100.
Cabeza, Roberto. “Hemispheric asymmetry reduction in older adults: the HAROLD model.Psychology and Aging, vol. 17, no. 1, Mar. 2002, pp. 85–100. Epmc, doi:10.1037//0882-7974.17.1.85.
Cabeza R. Hemispheric asymmetry reduction in older adults: the HAROLD model. Psychology and aging. 2002 Mar;17(1):85–100.

Published In

Psychology and aging

DOI

EISSN

1939-1498

ISSN

0882-7974

Publication Date

March 2002

Volume

17

Issue

1

Start / End Page

85 / 100

Related Subject Headings

  • Verbal Learning
  • Tomography, Emission-Computed
  • Pattern Recognition, Visual
  • Nerve Net
  • Models, Neurological
  • Mental Recall
  • Magnetic Resonance Imaging
  • Humans
  • Experimental Psychology
  • Dominance, Cerebral