Yanagisawa & Abe’s new paper published in “Journal of Experimental Psychology: General”
Assistant Professor Kuniaki Yanagisawa and Associate Prof. Nobuhito Abe‘s new paper published in “Journal of Experimental Psychology: General”.
Yanagisawa K, Abe N, Kashima ES, Nomura M (2016)
Self-esteem modulates amygdala-VLPFC connectivity in response to mortality threats
Journal of Experimental Psychology: General 145 (3): 273-283
http://psycnet.apa.org/journals/xge/145/3/273/
○Abstract
Reminders of death often elicit defensive responses in individuals, especially among those with low self-esteem. Although empirical evidence indicates that self-esteem serves as a buffer against mortality threats, the precise neural mechanism underlying this effect remains unknown. We used functional magnetic resonance imaging (fMRI) to test the hypothesis that self-esteem modulates neural responses to death-related stimuli, especially functional connectivity within the limbic-frontal circuitry, thereby affecting subsequent defensive reactions. As predicted, individuals with high self-esteem subjected to a mortality threat exhibited increased amygdala-ventrolateral prefrontal cortex (VLPFC) connectivity during the processing of death-related stimuli compared with individuals who have low self-esteem. Further analysis revealed that stronger functional connectivity between the amygdala and the VLPFC predicted a subsequent decline in responding defensively to those who threaten one’s beliefs. These results suggest that the amygdala-VLPFC interaction, which is modulated by self-esteem, can reduce the defensiveness caused by death-related stimuli, thereby providing a neural explanation for why individuals with high self-esteem exhibit less defensive reactions to mortality threats. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
Self-esteem modulates amygdala-VLPFC connectivity in response to mortality threats
Journal of Experimental Psychology: General 145 (3): 273-283
http://psycnet.apa.org/journals/xge/145/3/273/
○Abstract
Reminders of death often elicit defensive responses in individuals, especially among those with low self-esteem. Although empirical evidence indicates that self-esteem serves as a buffer against mortality threats, the precise neural mechanism underlying this effect remains unknown. We used functional magnetic resonance imaging (fMRI) to test the hypothesis that self-esteem modulates neural responses to death-related stimuli, especially functional connectivity within the limbic-frontal circuitry, thereby affecting subsequent defensive reactions. As predicted, individuals with high self-esteem subjected to a mortality threat exhibited increased amygdala-ventrolateral prefrontal cortex (VLPFC) connectivity during the processing of death-related stimuli compared with individuals who have low self-esteem. Further analysis revealed that stronger functional connectivity between the amygdala and the VLPFC predicted a subsequent decline in responding defensively to those who threaten one’s beliefs. These results suggest that the amygdala-VLPFC interaction, which is modulated by self-esteem, can reduce the defensiveness caused by death-related stimuli, thereby providing a neural explanation for why individuals with high self-esteem exhibit less defensive reactions to mortality threats. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
2016/03/04