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Examining the spatiotemporal disruption to gaze when using a myoelectric prosthetic hand

Parr, JVV and Vine, SJ and Harrison, NR and Wood, Greg (2017) Examining the spatiotemporal disruption to gaze when using a myoelectric prosthetic hand. Journal of Motor Behavior, 50 (4). pp. 416-425. ISSN 0022-2895

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Abstract

The aim of this study was to provide a detailed account of the spatial and temporal disruptions to eye-hand coordination when using a prosthetic hand during a sequential fine motor skill. Twenty-one abled-bodied participants performed 15 trials of the ‘picking up coins’ task derived from the Southampton Hand Assessment Procedure (SHAP) with their anatomic hand and with a prosthesis simulator while wearing eye-tracking equipment. Gaze behaviour results revealed that when using the prosthesis, performance detriments were accompanied by significantly greater hand-focused gaze and a significantly longer time to disengage gaze from manipulations to plan upcoming movements. Our findings highlight key metrics that distinguish disruptions to eye-hand coordination that might have implications for the training of prosthesis use.

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