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Subjective age and informant-rated cognition and function: A prospective study.

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Feeling older than your age may predict cognitive decline. This study found that a higher subjective age correlated with informant-rated worse cognitive function and daily activity abilities in older adults.

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Area of Science:

  • Gerontology
  • Cognitive Psychology
  • Sociology of Aging

Background:

  • Subjective age, the perception of how old one feels, is a key aspect of psychological aging.
  • Previous research has explored links between subjective age and health outcomes, but its relationship with informant-rated cognitive function requires further investigation.

Purpose of the Study:

  • To investigate the association between subjective age and cognitive function as perceived by knowledgeable informants.
  • To determine if subjective age predicts changes in cognitive abilities and daily functioning in older adults.

Main Methods:

  • Utilized data from 2,337 adults (mean age 69.84 years) from the Health and Retirement Study.
  • Collected subjective age and demographic data in 2008/2010 and informant-rated cognitive function in 2016.
  • Employed the Harmonized Cognitive Assessment Protocol for informant-rated cognitive measures.

Main Results:

  • A higher subjective age was significantly associated with informant-reported steeper cognitive decline.
  • Older subjective age correlated with informant-rated worse cognitive function and reduced ability in everyday activities.
  • Informant-rated loss of ability to perform daily activities was linked to a greater subjective age.

Conclusions:

  • Subjective age serves as a significant predictor of cognitive function in the context of everyday life, as observed by others.
  • Findings highlight the importance of subjective perceptions of aging in understanding objective cognitive health trajectories.
  • Informant-based assessments provide valuable insights into the functional consequences of subjective age.