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Cognitive function is associated with risk aversion in community-based older persons.

Patricia A Boyle1, Lei Yu, Aron S Buchman

  • 1Rush University Medical Center, Rush Alzheimer's Disease Center, 600 S. Paulina, Chicago, IL 60612, USA. Patricia_Boyle@rush.edu

BMC Geriatrics
|September 13, 2011
PubMed
Summary
This summary is machine-generated.

Cognitive decline in older adults is linked to increased risk aversion, meaning they are more likely to avoid gambles. This study found lower cognitive function and female sex are associated with greater risk aversion in advanced age.

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Area of Science:

  • Gerontology
  • Cognitive Neuroscience
  • Behavioral Economics

Background:

  • Emerging data suggest cognitive ability is negatively associated with risk aversion in younger and middle-aged individuals.
  • This association has not been previously studied in older adults, a demographic at high risk for cognitive decline.

Purpose of the Study:

  • To examine the correlates of risk aversion in older adults.
  • To test the hypothesis that cognitive function is negatively associated with risk aversion in this population.

Main Methods:

  • Data from 369 community-dwelling older adults without dementia were analyzed.
  • Risk aversion was measured using standard behavioral economics questions involving choices between certain monetary payments and gambles.
  • Global cognition and specific cognitive abilities were assessed via detailed cognitive testing.

Main Results:

  • In mixed-effect models, lower global cognitive function (estimate = -1.05, SE = 0.34, p < 0.003) and female sex (estimate = -1.49, SE = 0.39, p < 0.001) were significantly inversely associated with risk aversion.
  • Performance in semantic memory, episodic memory, working memory, and perceptual speed was negatively related to risk aversion.
  • Visuospatial abilities were not significantly associated with risk aversion.

Conclusions:

  • Lower cognitive ability is associated with greater risk aversion in advanced age.
  • Female sex is also associated with greater risk aversion in older adults.