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Cognitive Processing

, Volume 13, Supplement 1, pp 325–328 | Cite as

How tool use and arm position affect peripersonal space representation

  • Bruno Seraglia
  • Konstantinos Priftis
  • Simone Cutini
  • Luciano Gamberini
Short Report

Abstract

Experiment 1 investigated whether tool use can expand the peripersonal space into the very far extrapersonal space. Healthy participants performed line bisection in peripersonal and extrapersonal space using wooden sticks up to a maximum of 240 cm. Participants misbisected to the left of the true midpoint, both for lines presented in peripersonal and for those presented in extrapersonal space, confirming a peripersonal space expansion up to a distance of 240 cm. Experiment 2 investigated whether arm position could influence the perception of peripersonal and extrapersonal space during tool use. Participants performed line bisection in the peripersonal and in the extrapersonal space (up to a maximum of 120 cm) using wooden sticks in two different conditions: either with the arm bent or with the arm stretched. Results showed stronger pseudoneglect in the stretched arm condition.

Keywords

Peripersonal space Extrapersonal space Tool use Arm position Line bisection Pseudoneglect 

Notes

Acknowledgments

This research was supported by the European Project CEEDS, The Collective Experience of Emphatic Data Systems, European Integrated Project (Number: 258749; Call: ICT 2009.8.4 Human–Computer Confluence).

Conflict of interest

This supplement was not sponsored by outside commercial interests. It was funded entirely by ECONA, Via dei Marsi, 78, 00185 Roma, Italy.

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Copyright information

© Marta Olivetti Belardinelli and Springer-Verlag 2012

Authors and Affiliations

  • Bruno Seraglia
    • 1
  • Konstantinos Priftis
    • 1
    • 2
  • Simone Cutini
    • 1
  • Luciano Gamberini
    • 1
  1. 1.Department of General PsychologyUniversity of PaduaPaduaItaly
  2. 2.Laboratory of NeuropsychologyIRCCS San Camillo HospitalLido-VeniceItaly

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