Episodic memory enhancement versus impairment is determined by contextual similarity across events

Author:

Cox Wouter R.ORCID,Dobbelaar SimoneORCID,Meeter MartijnORCID,Kindt MerelORCID,van Ast Vanessa A.ORCID

Abstract

For over a century, stability of spatial context across related episodes has been considered a source of memory interference, impairing memory retrieval. However, contemporary memory integration theory generates a diametrically opposite prediction. Here, we aimed to resolve this discrepancy by manipulating local context similarity across temporally disparate but related episodes and testing the direction and underlying mechanisms of memory change. A series of experiments show that contextual stability produces memory integration and marked reciprocal strengthening. Variable context, conversely, seemed to result in competition such that new memories become enhanced at the expense of original memories. Interestingly, these patterns were virtually inverted in an additional experiment where context was reinstated during recall. These observations 1) identify contextual similarity across original and new memories as an important determinant in the volatility of memory, 2) present a challenge to classic and modern theories on episodic memory change, and 3) indicate that the sensitivity of context-induced memory changes to retrieval conditions may reconcile paradoxical predictions of interference and integration theory.

Funder

Nederlandse Organisatie voor Wetenschappelijk Onderzoek

Publisher

Proceedings of the National Academy of Sciences

Subject

Multidisciplinary

Reference57 articles.

1. E. Tulving , “Episodic and semantic memory” in Organization of Memory, E. Tulving , W. Donaldson , Eds. (Academic Press, 1972), pp. 382–402.

2. Forgetting and the law of disuse.

3. Similarity in stimulating conditions as a variable in retroactive inhibition.

4. Contextual stimuli and proactive inhibition.

5. Stimulus conditions and retroactive inhibition.

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