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Spatial memory tasks in aged animals: Overcoming methodological challenges.

Lisa Bevilacqua1, Giovanni Lai2, Belinda Giorgetti1

  • 1Center for Neurobiology of Aging, IRCCS INRCA, Ancona 60121, Italy.

Neuroscience and Biobehavioral Reviews
|January 12, 2026
PubMed
Summary
This summary is machine-generated.

Aging impairs spatial memory, particularly allocentric navigation, in rodents. Adapting standard behavioral tests for aged mice and rats is crucial for accurate, translational aging research.

Keywords:
Age-adapted testingAgingAllocentric cognitive mapEgocentric processingSpatial cognition

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Area of Science:

  • Neuroscience
  • Aging Research
  • Behavioral Science

Background:

  • Healthy aging is characterized by heterogeneous memory declines, with spatial abilities being particularly vulnerable.
  • Older adults often exhibit deficits in allocentric spatial processing, shifting towards egocentric strategies.
  • Rodent models are vital for studying age-related spatial memory changes, but standard paradigms may not translate well to aged animals.

Purpose of the Study:

  • To review spatial memory tasks sensitive to age-related changes in the hippocampal-entorhinal cortex.
  • To highlight age-related characteristics in rodents that necessitate experimental protocol adjustments.
  • To provide methodological considerations for adapting spatial memory tests for aged rodents.

Main Methods:

  • Focus on four allocentric spatial memory tasks: Morris water maze, Barnes maze, Object Location, and Spontaneous Location Recognition.
  • Review age-related factors like reduced fitness, sensory decline, and hormonal changes.
  • Explore literature for reported adaptations in aging rodent studies.

Main Results:

  • Standard spatial memory tasks are sensitive to age-related alterations in the hippocampal-entorhinal cortex.
  • Age-specific characteristics in rodents require modifications to behavioral protocols.
  • Adaptations include procedural adjustments, additional assessments, and unbiased scoring systems.

Conclusions:

  • Methodological refinement is essential for improving the validity of aging research in rodents.
  • Adapted spatial memory tests enhance the translational relevance of findings from aged animal models.
  • Careful consideration of age-related factors ensures more accurate insights into cognitive aging.