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Talking with Your (Artificial) Hands: Communicative Hand Gestures as an Implicit Measure of Embodiment

Maimon-Mor, RO; Obasi, E; Lu, J; Odeh, N; Kirker, S; MacSweeney, M; Goldin-Meadow, S; (2020) Talking with Your (Artificial) Hands: Communicative Hand Gestures as an Implicit Measure of Embodiment. iScience , 23 (11) , Article 101650. 10.1016/j.isci.2020.101650. Green open access

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Abstract

When people talk, they move their hands to enhance meaning. Using accelerometry, we measured whether people spontaneously use their artificial limbs (prostheses) to gesture, and whether this behavior relates to everyday prosthesis use and perceived embodiment. Perhaps surprisingly, one- and two-handed participants did not differ in the number of gestures they produced in gesture-facilitating tasks. However, they did differ in their gesture profile. One-handers performed more, and bigger, gesture movements with their intact hand relative to their prosthesis. Importantly, one-handers who gestured more similarly to their two-handed counterparts also used their prosthesis more in everyday life. Although collectively one-handers only marginally agreed that their prosthesis feels like a body part, one-handers who reported they embody their prosthesis also showed greater prosthesis use for communication and daily function. Our findings provide the first empirical link between everyday prosthesis use habits and perceived embodiment and a novel means for implicitly indexing embodiment.

Type: Article
Title: Talking with Your (Artificial) Hands: Communicative Hand Gestures as an Implicit Measure of Embodiment
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.isci.2020.101650
Publisher version: https://doi.org/10.1016/j.isci.2020.101650
Language: English
Additional information: © 2020 The Authors. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Human-Centered Computing, Social Sciences, Research Methodology Social Sciences
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Institute of Cognitive Neuroscience
URI: https://discovery.ucl.ac.uk/id/eprint/10113413
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