Reward anticipation selectively boosts encoding of gist for visual objects

Sci Rep. 2020 Nov 19;10(1):20196. doi: 10.1038/s41598-020-77369-4.

Abstract

Reward anticipation at encoding enhances later recognition, but it is unknown to what extent different levels of processing at encoding (gist vs. detail) can benefit from reward-related memory enhancement. In the current study, participants (N = 50) performed an incidental encoding task in which they made gist-related or detail-related judgments about pairs of visual objects while in anticipation of high or low reward. Results of a subsequent old/new recognition test revealed a reward-related memory benefit that was specific to objects from pairs encoded in the attention-to-gist condition. These findings are consistent with the theory of long-axis specialization along the human hippocampus, which localizes gist-based memory processes to the anterior hippocampus, a region highly interconnected with the dopaminergic reward network.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Anticipation, Psychological / physiology*
  • Attention / physiology*
  • Female
  • Humans
  • Judgment / physiology
  • Male
  • Mental Recall / physiology*
  • Neuropsychological Tests
  • Reaction Time / physiology
  • Reward*
  • Visual Perception / physiology
  • Young Adult