What is it about?
We studied how working memories change over time in the human brain over a period of seconds. Using brain imaging (fMRI), we tracked how memories are maintained across multiple brain regions as they gradually change. We found that memory errors arise because neural representations slowly drift, starting in higher-level brain areas and later spreading to early visual regions.
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Why is it important?
Working memory is essential for everyday decisions, from navigating the world to planning actions. Many brain regions are known to help keep information in mind, and the same piece of information appears to be represented across multiple brain areas at the same time. Our findings reveal how these distributed regions coordinate over time to support memory.
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This page is a summary of: Dynamics of working memory drift and information flow across the cortical hierarchy, Proceedings of the National Academy of Sciences, January 2026, Proceedings of the National Academy of Sciences,
DOI: 10.1073/pnas.2518110123.
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