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Optimistic update bias increases in older age.

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This summary is machine-generated.

Older adults exhibit an optimistic update bias, showing less adjustment to negative information. This bias, linked to the anterior cingulate cortex (ACC), may influence decision-making.

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Area of Science:

  • Neuroscience
  • Psychology
  • Gerontology

Background:

  • Healthy older adults report higher well-being and life satisfaction.
  • Enhanced optimism may explain age-related well-being differences.
  • Age influences optimistic/pessimistic beliefs and neural correlates.

Purpose of the Study:

  • To test the influence of age on optimistic/pessimistic beliefs.
  • To identify associated structural neural correlates.
  • To investigate age-related differences in belief updating for future negative events.

Main Methods:

  • Eighteen young and 18 older adults performed a belief updating task.
  • Belief updating for desirable/undesirable future negative information was measured.
  • Regional brain volume, specifically the anterior cingulate cortex (ACC), was assessed.

Main Results:

  • Older adults showed reduced belief updating for undesirable information (greater 'update bias').
  • This age-related bias persisted after controlling for memory and subjective ratings.
  • Greater dorsal ACC gray matter volume correlated with the 'update bias' in older adults.

Conclusions:

  • Healthy older adults exhibit a greater update bias.
  • This bias and ACC volume suggest a shared mechanism with age-related positivity bias.
  • An enhanced optimistic update bias may impact real-world decision-making in older adults.