Common and Unique Neural Systems Underlying the Working Memory Maintenance of Emotional vs. Bodily Reactions to Affective Stimuli: The Moderating Role of Trait Emotional Awareness
AffiliationUniv Arizona, Dept Psychiat
medial prefrontal cortex (MPFC)
MetadataShow full item record
PublisherFRONTIERS MEDIA SA
CitationSmith R, Lane RD, Sanova A, Alkozei A, Smith C and Killgore WDS (2018) Common and Unique Neural Systems Underlying the Working Memory Maintenance of Emotional vs. Bodily Reactions to Affective Stimuli: The Moderating Role of Trait Emotional Awareness. Front. Hum. Neurosci. 12:370. doi: 10.3389/fnhum.2018.00370
JournalFRONTIERS IN HUMAN NEUROSCIENCE
Rights© 2018 Smith, Lane, Sanova, Alkozei, Smith and Killgore. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).
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AbstractMany leading theories suggest that the neural processes underlying the experience of one's own emotional reactions partially overlap with those underlying bodily perception (i.e., interoception, somatosensation, and proprioception). However, the goal-directed maintenance of one's own emotions in working memory (EWM) has not yet been compared to WM maintenance of one's own bodily reactions (BWM). In this study, we contrasted WM maintenance of emotional vs. bodily reactions to affective stimuli in 26 healthy individuals while they underwent functional magnetic resonance imaging. Specifically, we examined the a priori hypothesis that individual differences in trait emotional awareness (tEA) would lead to greater differences between these two WM conditions within medial prefrontal cortex (MPFC). We observed that MPFC activation during EWM (relative to BWM) was positively associated with tEA. Whole-brain analyses otherwise suggested considerable similarity in the neural activation patterns associated with EWM and BWM. In conjunction with previous literature, our findings not only support a central role of body state representation/maintenance in EWM, but also suggest greater engagement of MPFC-mediated conceptualization processes during EWM in those with higher tEA.
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