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  11. How Age And Culture Impact The Neural Correlates Of Memory Retrieval

How age and culture impact the neural correlates of memory retrieval

Isu Cho1,2, Krystal R Leger3, Ioannis Valoumas3

  • 1Department of Psychology, Brandeis University, Waltham, MA, USA. isucho@skku.edu.

Cognitive, Affective & Behavioral Neuroscience
|January 8, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

Culture influences memory retrieval, with age impacting performance differently across American and Taiwanese adults. Neural differences in the left inferior frontal gyrus (LIFG) observed in younger adults diminished with age.

Area of Science:

  • Cognitive Neuroscience
  • Cross-Cultural Psychology
  • Neuroimaging

Background:

  • Culture significantly shapes cognitive processes, including memory.
  • Limited research has explored the interplay of culture, aging, and memory retrieval.
  • Understanding age-related memory changes across diverse cultural contexts is crucial.

Purpose of the Study:

  • To investigate the neural correlates of memory retrieval for old, new, and similar items in younger and older Americans and Taiwanese.
  • To examine how age and culture interact to influence memory discrimination and associated brain activity.
  • To explore cultural differences in cognitive strategies, such as novelty versus familiarity orientation, and their impact on memory.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) during an object recognition task.
Keywords:
AgeCultureFMRIMemory specificity

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  • Involved 207 younger and older participants from American and Taiwanese cultural backgrounds.
  • Assessed discrimination of old, new, and similar lure items.

    • Main Results:

    • Both age and culture significantly impacted memory discrimination accuracy.
    • Taiwanese participants generally performed worse than Americans, with more pronounced age effects observed in the Taiwanese group.
    • Cultural differences in left inferior frontal gyrus (LIFG) activation patterns between younger adults were not present in older adults.

    Conclusions:

    • Cultural life experiences and processing strategies influence memory trajectories across the lifespan.
    • The LIFG may play a role in resolving retrieval interference, with cultural modulation potentially decreasing with age.
    • Unexpectedly, hippocampal activity did not show cultural or age differences, despite its known role in pattern separation.
    Pattern separation
    Retrieval