Study Finds Dopamine Alters Perception of Reward-Linked Memories

A recent study has identified a new role for dopamine in the brain, showing that it can reshape memories associated with rewarding experiences. Researchers conducted experiments on mice and observed that dopamine actively reduces the perceived value of these reward-linked memories, influencing how individuals behave toward similar rewards in the future.

The findings emerged from controlled laboratory studies where scientists examined how dopamine interacts with memory processes tied to rewards. The research demonstrated that dopamine does not merely reinforce positive associations but also plays a role in diminishing their impact over time. This adjustment appears to affect decision-making and behavior by altering how past rewarding experiences are remembered and prioritized. The study provides insight into the complex mechanisms underlying memory and reward systems in the brain.

Date: March, 2025

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Author

Mark Chiang

紐約 NYU Computer Science 碩士 紐澤西 UMDNJ Biomedical Informatics 博士 中研院博士後 台灣大學博士後