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Happier People Show Greater Neural Connectivity during Negative Self-Referential Processing

Authors
 Eun Joo Kim  ;  Sunghyon Kyeong  ;  Sang Woo Cho  ;  Ji-Won Chun  ;  Hae-Jeong Park  ;  Jihye Kim  ;  Joohan Kim  ;  Raymond J. Dolan  ;  Jae-Jin Kim 
Citation
 PLOS ONE, Vol.11(2) : e0149554, 2016 
Journal Title
 PLOS ONE 
Issue Date
2016
MeSH
Adult ; Behavior ; Brain Mapping ; Demography ; Face ; Female ; Happiness* ; Humans ; Male ; Mental Processes* ; Nerve Net/physiology* ; Personal Satisfaction ; Reaction Time ; Task Performance and Analysis
Abstract
Life satisfaction is an essential component of subjective well-being and provides a fundamental resource for optimal everyday functioning. The goal of the present study was to examine how life satisfaction influences self-referential processing of emotionally valenced stimuli. Nineteen individuals with high life satisfaction (HLS) and 21 individuals with low life satisfaction (LLS) were scanned using functional MRI while performing a face-word relevance rating task, which consisted of 3 types of face stimuli (self, public other, and unfamiliar other) and 3 types of word stimuli (positive, negative, and neutral). We found a significant group x word valence interaction effect, most strikingly in the dorsal medial prefrontal cortex. In the positive word condition dorsal medial prefrontal cortex activity was significantly higher in the LLS group, whereas in the negative word condition it was significantly higher in the HLS group. The two groups showed distinct functional connectivity of the dorsal medial prefrontal cortex with emotional processing-related regions. The findings suggest that, in response to emotional stimuli, individuals with HLS may successfully recruit emotion regulation-related regions in contrast to individuals with LLS. The difference in functional connectivity during self-referential processing may lead to an influence of life satisfaction on responses to emotion-eliciting stimuli.
Files in This Item:
T201600909.pdf Download
DOI
10.1371/journal.pone.0149554
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Psychiatry (정신과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jae Jin(김재진) ORCID logo https://orcid.org/0000-0002-1395-4562
Park, Hae Jeong(박해정) ORCID logo https://orcid.org/0000-0002-4633-0756
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/146582
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