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The aging hippocampus: navigating between rat and human experiments.

Ira Driscoll1, Robert J Sutherland

  • 1Canadian Centre for Behavioural Neuroscience, Department of Psychology and Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada. ira.driscoll@uleth.ca

Reviews in the Neurosciences
|June 17, 2005
PubMed
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Aging impairs hippocampus-dependent learning and memory. Research using cognitive and neuroimaging methods reveals age-related changes in the hippocampus, aiding understanding and potential treatments for memory deficits.

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Aging Research

Background:

  • Aging commonly leads to cognitive decline, particularly in learning and memory functions.
  • The hippocampus, crucial for memory, is highly susceptible to age-related alterations.

Purpose of the Study:

  • To review recent findings on age-related cognitive impairments and hippocampal changes.
  • To explore methods for comparing hippocampus studies across species to bridge knowledge gaps.

Main Methods:

  • Review of cognitive, magnetic resonance imaging (MRI), and magnetic resonance spectroscopy (MRS) studies.
  • Inclusion of physiological and neurogenesis research.
  • Emphasis on comparative cognitive tasks for humans and animals.

Main Results:

Related Experiment Videos

  • Evidence indicates age-related cognitive deficits are linked to hippocampal changes at multiple levels in humans and animals.
  • Comparative approaches can facilitate understanding of the aging hippocampus across species.

Conclusions:

  • Understanding age-related hippocampal changes can inform diagnosis, prevention, and treatment of memory deficits.
  • Studying the aging hippocampus may enhance general knowledge of learning and memory mechanisms.