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The structural and functional connectivity neural underpinnings of body image

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journal contribution
posted on 15.09.2021, 14:19 by Massieh Moayedi, Nasim Noroozbahar, Georgia Hadjis, Kristy Themelis, Tim V Salomons, Roger NewportRoger Newport, Jennifer S Lewis
How we perceive our bodies is fundamental to our self-consciousness and our experience in the world. There are two types of interrelated internal body representations—a subjective experience of the position of a limb in space (body schema) and the subjective experience of the shape and size of the limb (body image). Body schema has been extensively studied, but there is no evidence of the brain structure and network dynamics underpinning body image. Here, we provide the first evidence for the extrastriate body area (EBA), a multisensory brain area, as the structural and functional neural substrate for body shape and size. We performed a multisensory finger-stretch illusion that elongated the index finger. EBA volume and functional connectivity to the posterior parietal cortex are both related to the participants' susceptibility to the illusion. Taken together, these data suggest that EBA structure and connectivity encode body representation and body perception disturbances.

Funding

University of the West of England. Grant Number: 201415/31

History

School

  • Sport, Exercise and Health Sciences

Published in

Human Brain Mapping

Volume

42

Issue

11

Pages

3608 - 3619

Publisher

Wiley

Version

VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by Wiley under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (CC BY-NC-ND 4.0). Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

12/04/2021

Publication date

2021-05-07

Copyright date

2021

ISSN

1065-9471

eISSN

1097-0193

Language

en

Depositor

Dr Roger Newport. Deposit date: 10 September 2021