TY - JOUR
T1 - Changes in body representation of the human upper limb as a function of movement and visual hand position
AU - Hamasaki, Shunsuke
AU - An, Qi
AU - Wen, Wen
AU - Tamura, Yusuke
AU - Yamakawa, Hiroshi
AU - Unenaka, Satoshi
AU - Shibuya, Satoshi
AU - Ohki, Yukari
AU - Yamashita, Atsushi
AU - Asama, Hajime
N1 - Funding Information:
This work was supported in part by JSPS KAKENHI Grant Number 26120005.
Publisher Copyright:
© Fuji Technology Press 2019. All rights reserved.
PY - 2019/3
Y1 - 2019/3
N2 - Several disease presentations are linked to a mismatch between the real body and the body’s internal representation of itself. In order to develop effective rehabilitation therapies, it is necessary to understand the mechanisms underlying changes in body representation. In this study, we focused on changes in body representation of the upper limb as a large part of the body and investigated the conditions under which such changes occur. Participants were presented four conditions which differentially affected their sense of ownership and agency, including a movement condition related to their sense of agency, and a visual hand information condition related to the sense of ownership. In the experiment, participants were asked to move their upper limb forward and backward on a manipulandum. Results of the study showed that visual hand position affected changes in body representation relevant to both conscious and unconscious body parts. In addition, changes in the representation of the unconscious body part occurred with, and were dependent on, active movement.
AB - Several disease presentations are linked to a mismatch between the real body and the body’s internal representation of itself. In order to develop effective rehabilitation therapies, it is necessary to understand the mechanisms underlying changes in body representation. In this study, we focused on changes in body representation of the upper limb as a large part of the body and investigated the conditions under which such changes occur. Participants were presented four conditions which differentially affected their sense of ownership and agency, including a movement condition related to their sense of agency, and a visual hand information condition related to the sense of ownership. In the experiment, participants were asked to move their upper limb forward and backward on a manipulandum. Results of the study showed that visual hand position affected changes in body representation relevant to both conscious and unconscious body parts. In addition, changes in the representation of the unconscious body part occurred with, and were dependent on, active movement.
KW - Body awareness
KW - Body representation
KW - Proprioceptive drift
KW - Sense of agency
KW - Sense of ownership
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U2 - 10.20965/jaciii.2019.p0196
DO - 10.20965/jaciii.2019.p0196
M3 - Article
AN - SCOPUS:85063787912
VL - 23
SP - 196
EP - 208
JO - Journal of Advanced Computational Intelligence and Intelligent Informatics
JF - Journal of Advanced Computational Intelligence and Intelligent Informatics
SN - 1343-0130
IS - 2
ER -