Reconsolidation of episodic memories: A subtle reminder triggers integration of new information

Almut Hupbach, Rebecca L Gomez, Oliver Hardt, Lynn Nadel

Research output: Contribution to journalArticle

317 Citations (Scopus)

Abstract

Recent demonstrations of "reconsolidation" suggest that memories can be modified when they are reactivated. Reconsolidation has been observed in human procedural memory and in implicit memory in infants. This study asks whether episodic memory undergoes reconsolidation. College students learned a list of objects on Day 1. On Day 2, they received a reminder or not, and then learned a second list. Memory for List 1 was tested immediately on Day 2 (Experiment 2) or on Day 3 (Experiment 1). Although the reminder did not moderate the number of items recalled from List 1 on either day, subjects who received a reminder incorrectly intermixed items from the second list when recalling List 1 on Day 3. Experiment 2 showed that this effect does not occur immediately and thus is time-dependent. The reminder did not affect memory for List 2 on Day 3 (Experiment 3), demonstrating that modification occurred only for the original memory (List 1). The study demonstrates the crucial role of reminders for the modification of episodic memory, that reconsolidation of episodic memory is time-dependent, and, in contrast to previous reconsolidation findings, that reconsolidation is also a constructive process, one that supports the incorporation of new information in memory.

Original languageEnglish (US)
Pages (from-to)47-53
Number of pages7
JournalLearning and Memory
Volume14
Issue number1
DOIs
StatePublished - Jan 2007

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Episodic Memory
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ASJC Scopus subject areas

  • Neuroscience(all)

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Reconsolidation of episodic memories : A subtle reminder triggers integration of new information. / Hupbach, Almut; Gomez, Rebecca L; Hardt, Oliver; Nadel, Lynn.

In: Learning and Memory, Vol. 14, No. 1, 01.2007, p. 47-53.

Research output: Contribution to journalArticle

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