Neural correlates of associative memory: The effects of negative emotion

Neuroscience Research Volume 64 Issue 1 Page 50-55 published_at 2009
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Title ( eng )
Neural correlates of associative memory: The effects of negative emotion
Creator
Onoda Keiichi
Source Title
Neuroscience Research
Volume 64
Issue 1
Start Page 50
End Page 55
Abstract
We explored brain activation associated with negative emotionality, during an associative memory task that involved the encoding and retrieval of word pairs. Participants were instructed to memorize word pairs and subsequently retrieve them. The word pairs consisted of either emotional or neutral words. Significant hippocampal activation was observed during both encoding and retrieval of the neutral word pairs, and was correlated with correct response rates during retrieval. However, the negative word pairs activated the left middle temporal gyrus during both encoding and retrieval. These results suggest that hippocampal activation is involved in both the encoding and retrieval of word pairs. However, negative emotionality does not necessarily enhance hippocampal activity and memory performance.
Keywords
Associative memory
Hippocampus
Left middle temporal gyrus
Emotion
fMRI
NDC
Medical sciences [ 490 ]
Language
eng
Resource Type journal article
Publisher
Elsevier Ireland Ltd
Date of Issued 2009
Rights
Copyright (c) 2009 Elsevier Ireland Ltd and the Japan Neuroscience Society.
Publish Type Author’s Original
Access Rights open access
Source Identifier
[ISSN] 0168-0102
[DOI] 10.1016/j.neures.2009.01.008
[NCID] AA10641652
[DOI] http://dx.doi.org/10.1016/j.neures.2009.01.008