Boosting long-term effects of degraded memories via acute stress

Combining recall of an emotional memory with simultaneous horizontal eye movements (i.e., Recall + EM) reduces memory aversiveness. However, the long-term persistence of this effect is inconsistent across studies. Given that stress may aid in the consolidation of memories, we examined whether acute...

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Bibliographic Details
Main Authors: Kevin van Schie, Matthias Burghart, Sahaj Kang, Gaëtan Mertens, Tom Smeets
Format: Article
Language:English
Published: Elsevier 2022-08-01
Series:Comprehensive Psychoneuroendocrinology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666497622000455
Description
Summary:Combining recall of an emotional memory with simultaneous horizontal eye movements (i.e., Recall + EM) reduces memory aversiveness. However, the long-term persistence of this effect is inconsistent across studies. Given that stress may aid in the consolidation of memories, we examined whether acute stress can boost the long-term effects of degraded memories. To test this, participants recalled two negative memories, which were assigned to a Recall + EM or Recall Only condition. Before and after each intervention they rated memory aversiveness (i.e., immediate effects) followed by a stress-induction or control procedure. After a 24h-period, participants rated each memory again (i.e., long-term effects). We found that Recall + EM produces immediate effects but that these effects dissolve over time. Moreover, acute stress did not boost potential long-term effects of Recall + EM. Degraded memories were not retained better by applying stress. We discuss these results and how long-term effectiveness may still be achieved.
ISSN:2666-4976