Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Dissociating effect of upper limb non-use and overuse on space and body representations
 
Loading...
Thumbnail Image
research article

Dissociating effect of upper limb non-use and overuse on space and body representations

Bassolino, Michela  
•
Finisguerra, Alessandra
•
Canzoneri, Elisa  
Show more
2015
Neuropsychologia

Accurate and updated representations of the space where the body acts, i.e. the peripersonal space (PPS), and the location and dimension of body parts (body representation, BR) are essential to perform actions. Because both PPS and BR are involved in motor execution and display the same plastic proprieties after the use of a tool to reach far objects, it has been suggested that they overlap in a unique representation of the body in a space devoted to action. Here we determined whether manipulating actions in space, without modifying body metrics, i.e. through immobilization, induces a dissociation of the plastic properties of PPS and BR. In 39 healthy subjects we evaluated PPS and BR for the non-used right limb and the overused left limb before and after 10 h of right arm immobilization. We observed that non-use reduces PPS representation around the immobilized arm, without affecting the metric representation (i.e. perceived length) of that limb. In contrast, overuse modulates the metric representation of the free arm, leaving PPS unchanged around that limb. These results suggest that the plasticity in PPS and BR depends on different mechanisms; while PPS representation is shaped as a function of the dimension of the acting space, metric characteristics of BR are forged on a complex interplay between visual and sensorimotor information related to the body. This behavioral dissociation between PPS and BR defines a new scenario for the role of action in shaping space and body representations. (C) 2015 Elsevier Ltd. All rights reserved.

  • Details
  • Metrics
Type
research article
DOI
10.1016/j.neuropsychologia.2014.11.028
Web of Science ID

WOS:000354596900039

Author(s)
Bassolino, Michela  
•
Finisguerra, Alessandra
•
Canzoneri, Elisa  
•
Serino, Andrea  
•
Pozzo, Thierry
Date Issued

2015

Publisher

Pergamon-Elsevier Science Ltd

Published in
Neuropsychologia
Volume

70

Start page

385

End page

392

Subjects

Peripersonal space

•

Body representation

•

Immobilization

•

Plasticity

•

Action

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
BMI  
Available on Infoscience
September 28, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/119210
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés