Is our self nothing but reward? Neuronal overlap and distinction between reward and personal relevance and its relation to human personality.

BACKGROUND:The attribution of personal relevance, i.e. relating internal and external stimuli to establish a sense of belonging, is a common phenomenon in daily life. Although previous research demonstrated a relationship between reward and personal relevance, their exact neuronal relationship inclu...

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Main Authors: Björn Enzi, Moritz de Greck, Ulrike Prösch, Claus Tempelmann, Georg Northoff
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2009-12-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC2794541?pdf=render
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author Björn Enzi
Moritz de Greck
Ulrike Prösch
Claus Tempelmann
Georg Northoff
author_facet Björn Enzi
Moritz de Greck
Ulrike Prösch
Claus Tempelmann
Georg Northoff
author_sort Björn Enzi
collection DOAJ
description BACKGROUND:The attribution of personal relevance, i.e. relating internal and external stimuli to establish a sense of belonging, is a common phenomenon in daily life. Although previous research demonstrated a relationship between reward and personal relevance, their exact neuronal relationship including the impact of personality traits remains unclear. METHODOLOGY/PRINCIPAL FINDINGS:Using functional magnetic resonance imaging, we applied an experimental paradigm that allowed us to explore the neural response evoked by reward and the attribution of personal relevance separately. We observed different brain regions previously reported to be active during reward and personal relevance, including the bilateral caudate nucleus and the pregenual anterior cingulate cortex (PACC). Additional analysis revealed activations in the right and left insula specific for the attribution of personal relevance. Furthermore, our results demonstrate a negative correlation between signal changes in both the PACC and the left anterior insula during the attribution of low personal relevance and the personality dimension novelty seeking. CONCLUSION/SIGNIFICANCE:While a set of subcortical and cortical regions including the PACC is commonly involved in reward and personal relevance, other regions like the bilateral anterior insula were recruited specifically during personal relevance. Based on our correlation between novelty seeking and signal changes in both regions during personal relevance, we assume that the neuronal response to personally relevant stimuli is dependent on the personality trait novelty seeking.
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spelling doaj.art-492b2196ebc7416b8b71024b4f39c2442022-12-22T03:55:09ZengPublic Library of Science (PLoS)PLoS ONE1932-62032009-12-01412e842910.1371/journal.pone.0008429Is our self nothing but reward? Neuronal overlap and distinction between reward and personal relevance and its relation to human personality.Björn EnziMoritz de GreckUlrike PröschClaus TempelmannGeorg NorthoffBACKGROUND:The attribution of personal relevance, i.e. relating internal and external stimuli to establish a sense of belonging, is a common phenomenon in daily life. Although previous research demonstrated a relationship between reward and personal relevance, their exact neuronal relationship including the impact of personality traits remains unclear. METHODOLOGY/PRINCIPAL FINDINGS:Using functional magnetic resonance imaging, we applied an experimental paradigm that allowed us to explore the neural response evoked by reward and the attribution of personal relevance separately. We observed different brain regions previously reported to be active during reward and personal relevance, including the bilateral caudate nucleus and the pregenual anterior cingulate cortex (PACC). Additional analysis revealed activations in the right and left insula specific for the attribution of personal relevance. Furthermore, our results demonstrate a negative correlation between signal changes in both the PACC and the left anterior insula during the attribution of low personal relevance and the personality dimension novelty seeking. CONCLUSION/SIGNIFICANCE:While a set of subcortical and cortical regions including the PACC is commonly involved in reward and personal relevance, other regions like the bilateral anterior insula were recruited specifically during personal relevance. Based on our correlation between novelty seeking and signal changes in both regions during personal relevance, we assume that the neuronal response to personally relevant stimuli is dependent on the personality trait novelty seeking.http://europepmc.org/articles/PMC2794541?pdf=render
spellingShingle Björn Enzi
Moritz de Greck
Ulrike Prösch
Claus Tempelmann
Georg Northoff
Is our self nothing but reward? Neuronal overlap and distinction between reward and personal relevance and its relation to human personality.
PLoS ONE
title Is our self nothing but reward? Neuronal overlap and distinction between reward and personal relevance and its relation to human personality.
title_full Is our self nothing but reward? Neuronal overlap and distinction between reward and personal relevance and its relation to human personality.
title_fullStr Is our self nothing but reward? Neuronal overlap and distinction between reward and personal relevance and its relation to human personality.
title_full_unstemmed Is our self nothing but reward? Neuronal overlap and distinction between reward and personal relevance and its relation to human personality.
title_short Is our self nothing but reward? Neuronal overlap and distinction between reward and personal relevance and its relation to human personality.
title_sort is our self nothing but reward neuronal overlap and distinction between reward and personal relevance and its relation to human personality
url http://europepmc.org/articles/PMC2794541?pdf=render
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