The dynamics of memory: Context-dependent updating

Almut Hupbach, Oliver Hardt, Rebecca Gomez, Lynn Nadel

Research output: Contribution to journalArticle

139 Scopus citations

Abstract

Understanding the dynamics of memory change is one of the current challenges facing cognitive neuroscience. Recent animal work on memory reconsolidation shows that memories can be altered long after acquisition. When reactivated, memories can be modified and require a restabilization (reconsolidation) process. We recently extended this finding to human episodic memory by showing that memory reactivation mediates the incorporation of new information into existing memory. Here we show that the spatial context plays a unique role for this type of memory updating: Being in the same spatial context during original and new learning is both necessary and sufficient for the incorporation of new information into existing episodic memories. Memories are automatically reactivated when subjects return to an original learning context, where updating by incorporating new contents can occur. However, when in a novel context, updating of existing memories does not occur, and a new episodic memory is created instead.

Original languageEnglish (US)
Pages (from-to)574-579
Number of pages6
JournalLearning and Memory
Volume15
Issue number8
DOIs
StatePublished - Aug 1 2008

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ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Cognitive Neuroscience
  • Cellular and Molecular Neuroscience

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