Tolerance of time delay to the sense of agency for operating electric prosthetic hands: A preliminary experiment with the appearance and gripping action

Ryuichi Furuhashi, Tarou Sugihara, Kenji Sato, Akio Gofuku

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Rehabilitation in patients with phantom limb pain using an electric prosthetic hand is a promising way to mitigate their pain. This method is thought to reconstruct the patient's sensory-motor loop that connects a command from the brain for a particular movement with the perception that the electric prosthetic hand is actually being driven by this command. A sense of agency (SoA), offered by the feeling that the prosthetic hand is being operated by the patient's own intentions, is important for this rehabilitation. However, the relationship between characteristics of the prosthetic hand, especially the degree of reproducibility of its appearance and of gripping actions, and the associated SoA is not clear. This study therefore investigated the influence of the reproducibility of gripping action of an electric prosthetic hand and its appearance on participants' (n = 60) SoA. In advance of adopting patient with phantom limb pain, this study focused on the difference of SoA scores of healthy participants. Significant differences were observed in SoA scores due to the changes in reproducibility of the appearance and gripping action. It is suggested that SoA is more strongly perceived when the prosthetic hand does not strictly resemble a human hand.

Original languageEnglish
Title of host publicationProceedings of the 2020 IEEE International Conference on Human-Machine Systems, ICHMS 2020
EditorsGiancarlo Fortino, Fei-Yue Wang, Andreas Nurnberger, David Kaber, Rino Falcone, David Mendonca, Zhiwen Yu, Antonio Guerrieri
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728158716
DOIs
Publication statusPublished - Sep 2020
Event1st IEEE International Conference on Human-Machine Systems, ICHMS 2020 - Virtual, Rome, Italy
Duration: Sep 7 2020Sep 9 2020

Publication series

NameProceedings of the 2020 IEEE International Conference on Human-Machine Systems, ICHMS 2020

Conference

Conference1st IEEE International Conference on Human-Machine Systems, ICHMS 2020
Country/TerritoryItaly
CityVirtual, Rome
Period9/7/209/9/20

Keywords

  • Electric Prosthetic hand
  • Mirror visual Feedback Therapy
  • Phantom Limb Pain
  • Sense of Agency

ASJC Scopus subject areas

  • Human-Computer Interaction

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