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Related Concept Videos

Aging01:26

Aging

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
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The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
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Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
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Related Experiment Video

Updated: Jul 21, 2025

Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
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Evidence Accumulation Rate Moderates the Relationship between Enriched Environment Exposure and Age-Related Response

Méadhbh Brosnan1,2,3,4,5, Daniel J Pearce6, Megan H O'Neill6

  • 1Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria 3800, Australia meadhbh.brosnan@ucd.ie mark.bellgrove@monash.edu.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|July 28, 2023
PubMed
Summary
This summary is machine-generated.

Cognitive reserve in older adults is linked to how efficiently the brain accumulates evidence. Enriched environments may protect cognitive function by improving this evidence accumulation, even with brain health decline.

Keywords:
agingcognitive reservedecision-makingenriched environmentsneurocognitive resilienceresponse speed

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Area of Science:

  • Neuroscience
  • Cognitive Aging
  • Cognitive Psychology

Background:

  • Older adults in enriched environments (EEs) show preserved cognitive function despite brain health changes.
  • Response speed (RS) is a common measure of cognitive function in aging.
  • Specific neural processes underlying age-related RS changes are not fully understood.

Purpose of the Study:

  • To identify specific neurocognitive processes that determine preserved response speed in older adults.
  • To investigate how enriched environments influence these neural processes and cognitive function.

Main Methods:

  • Utilized electroencephalography (EEG) during a simple decision-making task.
  • Analyzed neural data to assess evidence accumulation efficiency in older adults.
  • Correlated EEG metrics with response speed and lifetime exposure to enriched environments.

Main Results:

  • Evidence accumulation efficiency was a key factor in maintaining response speed in older adults.
  • The benefits of enriched environments on response speed were most apparent with slower evidence accumulation.
  • Neurophysiological markers, like evidence accumulation, reflect cognitive reserve.

Conclusions:

  • EEG-based metrics of evidence accumulation can indicate neurocognitive vulnerability in aging.
  • Cognitive reserve, influenced by enriched environments, extends to neurophysiological markers.
  • EEG is a valuable tool for understanding how lifelong stimulation impacts brain health during aging.