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research article

The Brain Network reflecting Bodily Self-Consciousness: a functional connectivity study

Ionta, Silvio
•
Martuzzi, Roberto  
•
Salomon, Roy  
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2014
Social Cognitive And Affective Neuroscience

Several brain regions are important for processing self-location and first-person perspective, two important aspects of bodily self-consciousness. However, the interplay between these regions has not been clarified. In addition, while self-location and first-person perspective in healthy subjects are associated with bilateral activity in temporo-parietal junction (TPJ), disturbed self-location and first-person perspective result from damage of only the bright TPJ. Identifying the involved brain network and understanding the role of hemispheric specializations in encoding self-location and first-person perspective, will provide important information on system-level interactions neurally mediating bodily self-consciousness. Here, we used functional connectivity and showed that right and left TPJ are bilaterally connected to supplementary motor area, ventral premotor cortex, insula, intraparietal sulcus, and occipito-temporal cortex. Furthermore, the functional connectivity between right TPJ and right insula had the highest selectivity for changes in self-location and first-person perspective. Finally, functional connectivity revealed hemispheric differences showing that self-location and first-person perspective modulated the connectivity between right TPJ, right posterior insula, and right supplementary motor area, and between left TPJ and right anterior insula. The present data extend previous evidence on healthy populations and clinical observations in neurological deficits, supporting a bilateral, but right-hemispheric dominant, network for bodily self-consciousness.

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Type
research article
DOI
10.1093/scan/nst185
Author(s)
Ionta, Silvio
Martuzzi, Roberto  
Salomon, Roy  
Blanke, Olaf  
Date Issued

2014

Publisher

Oxford Univ Press

Published in
Social Cognitive And Affective Neuroscience
Volume

9

Issue

12

Start page

1904

End page

1913

Subjects

self-location

•

first-person perspective

•

temporoparietal junction

•

insula

•

multisensory integration

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CNP  
LNCO  
Available on Infoscience
January 15, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/99557
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