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Cognitive neuroscience of aging: contributions of functional neuroimaging.

Publication ,  Journal Article
Cabeza, R
Published in: Scandinavian journal of psychology
July 2001

By revealing how brain activity during cognitive performance changes as a function of aging, studies using positron emission tomography (PET) and functional magnetic resonance imaging (fMRI) are contributing to the development of a new discipline of Cognitive Neuroscience of Aging. This article reviews functional neuroimaging studies of cognitive aging in the domains of visual perception, episodic memory encoding and semantic memory retrieval, episodic memory retrieval, implicit memory, and working memory. The most consistent finding of these studies was that brain activity tends to be less lateralized in older adults than in younger adults. This finding is conceptualized in terms of a model called Hemispheric Asymmetry Reduction in Old Adults (HAROLD). According to a compensation hypothesis, bihemispheric involvement could help counteract age-related neurocognitive decline, whereas, according to a dedifferentiation hypothesis, it reflects a difficulty in recruiting specialized neural mechanisms.

Duke Scholars

Published In

Scandinavian journal of psychology

DOI

EISSN

1467-9450

ISSN

0036-5564

Publication Date

July 2001

Volume

42

Issue

3

Start / End Page

277 / 286

Related Subject Headings

  • Visual Perception
  • Tomography, Emission-Computed
  • Memory
  • Magnetic Resonance Imaging
  • Humans
  • Experimental Psychology
  • Dominance, Cerebral
  • Cognition
  • Brain
  • Aging
 

Citation

APA
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ICMJE
MLA
NLM
Cabeza, R. (2001). Cognitive neuroscience of aging: contributions of functional neuroimaging. Scandinavian Journal of Psychology, 42(3), 277–286. https://doi.org/10.1111/1467-9450.00237
Cabeza, R. “Cognitive neuroscience of aging: contributions of functional neuroimaging.Scandinavian Journal of Psychology 42, no. 3 (July 2001): 277–86. https://doi.org/10.1111/1467-9450.00237.
Cabeza R. Cognitive neuroscience of aging: contributions of functional neuroimaging. Scandinavian journal of psychology. 2001 Jul;42(3):277–86.
Cabeza, R. “Cognitive neuroscience of aging: contributions of functional neuroimaging.Scandinavian Journal of Psychology, vol. 42, no. 3, July 2001, pp. 277–86. Epmc, doi:10.1111/1467-9450.00237.
Cabeza R. Cognitive neuroscience of aging: contributions of functional neuroimaging. Scandinavian journal of psychology. 2001 Jul;42(3):277–286.
Journal cover image

Published In

Scandinavian journal of psychology

DOI

EISSN

1467-9450

ISSN

0036-5564

Publication Date

July 2001

Volume

42

Issue

3

Start / End Page

277 / 286

Related Subject Headings

  • Visual Perception
  • Tomography, Emission-Computed
  • Memory
  • Magnetic Resonance Imaging
  • Humans
  • Experimental Psychology
  • Dominance, Cerebral
  • Cognition
  • Brain
  • Aging