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If I were a grown-up: Children's response to the Rubber Hand Illusion with different hand sizes

Filippetti, Maria Laura and Crucianelli, Laura (2019) 'If I were a grown-up: Children's response to the Rubber Hand Illusion with different hand sizes.' Journal of Experimental Child Psychology, 185. pp. 191-205. ISSN 0022-0965

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During childhood, children’s bodies undergo rapid physical growth, which may affect their ability to accurately perceive their own bodies as well as the external environment. Concurrently, multisensory processes underlying bodily self-consciousness gradually develop. However, little is known of the relation between changes in body size and corresponding update in bodily self-consciousness. In this study, 6- to 8-year-old children experienced the “rubber hand illusion” while watching a regular (child-like) or larger (adult-like) rubber hand being touched either synchronously or asynchronously with their own real hand. We measured proprioceptive drift and subjective ownership as well as changes in weight estimation of objects. Synchronous versus asynchronous visuotactile stroking with both the regular and larger hands caused a change in subjective body ownership but did not make a difference in perceived hand location and weight estimation of objects having the same size but different weight. Intriguingly, simply viewing the regular hand led to greater proprioceptive drift and to overestimation of the objects’ weight relative to the larger hand. In addition, weight estimation was also influenced by hand size after visuotactile stroking. These results demonstrate that visuotactile information modulates the intrinsic properties of body representation in terms of size in children and further corroborate previous findings suggesting late developing optimal calibration of visual and proprioceptive signals.

Item Type: Article
Uncontrolled Keywords: Body representation development; Body awareness; Rubber hand illusion; Size–weight illusion; Body size; Body image
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science and Health
Faculty of Science and Health > Psychology, Department of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 24 May 2019 15:24
Last Modified: 06 Jan 2022 14:00

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