Retrieved emotional context influences hippocampal involvement during recognition of neutral memories

Fulltext:
177645.pdf
Embargo:
until further notice
Size:
1.325Mb
Format:
PDF
Description:
Publisher’s version
Publication year
2016Number of pages
13 p.
Source
NeuroImage, 143, (2016), pp. 280-292ISSN
Publication type
Article / Letter to editor

Display more detailsDisplay less details
Organization
SW OZ BSI OLO
PI Group Neurobiology of Language
Cognitive Neuroscience
Journal title
NeuroImage
Volume
vol. 143
Languages used
English (eng)
Page start
p. 280
Page end
p. 292
Subject
110 000 Neurocognition of Language; Learning and Plasticity; Radboudumc 13: Stress-related disorders DCMN: Donders Center for Medical NeuroscienceAbstract
It is well documented that emotionally arousing experiences are better remembered than mundane events. This is thought to occur through hippocampus-amygdala crosstalk during encoding, consolidation, and retrieval. Here we investigated whether emotional events (context) also cause a memory benefit for simultaneously encoded non-arousing contents and whether this effect persists after a delay via recruitment of a similar hippocampus-amygdala network. Participants studied neutral pictures (content) encoded together with either an arousing or a neutral sound (that served as context) in two study sessions three days apart. Memory was tested in a functional magnetic resonance scanner directly after the second study session. Pictures recognised with high confidence were more often thought to have been associated with an arousing than with a neutral context, irrespective of the veridical source memory. If the retrieved context was arousing, an area in the hippocampus adjacent to the amygdala exhibited heightened activation and this area increased functional connectivity with the parahippocampal gyrus, an area known to process pictures of scenes. These findings suggest that memories can be shaped by the retrieval act. Memory structures may be recruited to a higher degree when an arousing context is retrieved, and this may give rise to confident judgments of recognition for neutral pictures even after a delay.
This item appears in the following Collection(s)
- Academic publications [203793]
- Donders Centre for Cognitive Neuroimaging [3390]
- Electronic publications [102109]
- Faculty of Medical Sciences [80320]
- Faculty of Social Sciences [27292]
Upload full text
Use your RU credentials (u/z-number and password) to log in with SURFconext to upload a file for processing by the repository team.