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Related Experiment Video

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Diminished Feedback Evaluation and Knowledge Updating Underlying Age-Related Differences in Choice Behavior During

Tineke de Haan1, Berry van den Berg1, Marty G Woldorff2

  • 1Department of Experimental Psychology, University of Groningen, Groningen, Netherlands.

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Older adults show reduced learning due to impaired positive feedback evaluation and knowledge updating. This impacts their choice behavior adaptation, unlike younger adults.

Keywords:
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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Aging Research

Background:

  • Learning from feedback is crucial for goal achievement but declines with age.
  • Age-related deficits affect higher-level learning processes like feedback evaluation and knowledge integration.
  • Neural mechanisms of age-related changes in feedback-guided choice behavior are not well understood.

Purpose of the Study:

  • To investigate the relationship between neural processes and choice behavior during feedback learning in young and older adults.
  • To clarify the neural underpinnings of age-related differences in learning and behavioral adaptation.

Main Methods:

  • Behavioral and functional magnetic resonance imaging (fMRI) data were collected from young (18-30 years) and older (60-75 years) adults.
  • Participants performed a probabilistic learning task involving choices between stimuli (house vs. face) with varying reward probabilities and received feedback (gain/loss).

Main Results:

  • Older adults exhibited less successful learning (lower learning rate) and a higher tendency to switch choices.
  • Older adults showed reduced adaptation of switch behavior after positive feedback compared to younger adults.
  • Neural activity showed less distinction between positive and negative feedback in older adults, linked to a weaker response to positive feedback.
  • Younger adults updated knowledge before adapting choices, an effect not observed in older adults.

Conclusions:

  • Diminished learning performance in older adults correlates with reduced positive feedback evaluation and knowledge updating.
  • Age-related differences in trial-level feedback processing contribute to reduced learning performance across trials.
  • Neural and behavioral findings highlight how aging impacts feedback-driven learning and behavioral adaptation.