887
IRUS Total
Downloads

A system for electrotactile feedback using electronic skin and flexible matrix electrodes: Experimental evaluation

File Description SizeFormat 
07592935(4)_IEEEHaptics (002).pdfAccepted version1.57 MBAdobe PDFView/Open
Title: A system for electrotactile feedback using electronic skin and flexible matrix electrodes: Experimental evaluation
Authors: Franceschi, M
Seminara, L
Dosen, S
Strbac, M
Valle, M
Farina, D
Item Type: Journal Article
Abstract: Myoelectric prostheses are successfully controlled using muscle electrical activity, thereby restoring lost motor functions. However, the somatosensory feedback from the prosthesis to the user is still missing. The sensory substitution methods described in the literature comprise mostly simple position and force sensors combined with discrete stimulation units. The present study describes a novel system for sophisticated electrotactile feedback integrating advanced distributed sensing (electronic skin) and stimulation (matrix electrodes). The system was tested in eight healthy subjects who were asked to recognize the shape, trajectory, and direction of a set of dynamic movement patterns (single lines, geometrical objects, letters) presented on the electronic skin. The experiments demonstrated that the system successfully translated the mechanical interaction into the moving electrotactile profiles, which the subjects could recognize with a good performance (shape recognition: 86±8% lines, 73±13% geometries, 72±12% letters). In particular, the subjects could identify the movement direction with a high confidence. These results are in accordance with previous studies investigating the recognition of moving stimuli in human subjects. This is an important development towards closed-loop prostheses providing comprehensive and sophisticated tactile feedback to the user, facilitating the control and the embodiment of the artificial device into the user body scheme.
Issue Date: 20-Oct-2016
Date of Acceptance: 1-Oct-2016
URI: http://hdl.handle.net/10044/1/48172
DOI: https://dx.doi.org/10.1109/TOH.2016.2618377
ISSN: 1939-1412
Publisher: Institute of Electrical and Electronics Engineers
Start Page: 162
End Page: 172
Journal / Book Title: IEEE Transactions on Haptics
Volume: 10
Issue: 2
Copyright Statement: © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Publication Status: Published
Appears in Collections:Bioengineering
Faculty of Engineering