Multi-Channel Electrotactile Stimulation System for Touch Substitution: A Case Study

Hoda Fares; Lucia Seminara; Hussein Chible; Strahinja Dosen; Maurizio Valle

doi:10.1109/PRIME.2018.8430345

Multi-Channel Electrotactile Stimulation System for Touch Substitution: A Case Study

Hoda Fares, Lucia Seminara, Hussein Chible, Strahinja Dosen, Maurizio Valle

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

5 Citations (Scopus)

Abstract

Reconstructing the sense of touch in prosthetics is a long-standing research challenge. To this aim, the prosthesis can be supplied with sensory arrays to measure the tactile interaction with the environment. In addition, a reliable feedback system is required to code and transmit the measured somatosensory information to the residual limb. This paper presents a multichannel electrotactile stimulation interface. Two coding schemes (mixed and uniform coding) were tested to assess the ability of the subject to localize the stimulation (identify the active pad). The outcome measures were position recognition and frequency discrimination. Our preliminary results show high accuracies in discriminating different frequency levels, i.e., 80% for low-level frequencies and 87% for high-level frequencies. In addition, the mixed coding has substantially improved the spatial localization. These are important insights regarding the development of multichannel sensing and stimulation systems for feedback in prosthetics.

Original language	English
Title of host publication	PRIME 2018 - 14th Conference on Ph.D. Research in Microelectronics and Electronics
Number of pages	4
Publisher	IEEE
Publication date	8 Aug 2018
Pages	213-216
Article number	8430345
ISBN (Print)	978-1-5386-5386-9
ISBN (Electronic)	978-1-5386-5387-6
DOIs	https://doi.org/10.1109/PRIME.2018.8430345
Publication status	Published - 8 Aug 2018
Event	14th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2018 - Prague, Czech Republic Duration: 2 Jul 2018 → 5 Jul 2018

Conference

Conference	14th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2018
Country/Territory	Czech Republic
City	Prague
Period	02/07/2018 → 05/07/2018
Sponsor	Allegro, Dialog Semiconductor, et al., ON Semiconductor, SEMI, ST - Life Augmented

Keywords

Electrotactile stimulation
frequency coding
restoration of sense of touch
somatosensory feedback
stimulation electrodes
tactile perception

Access to Document

10.1109/PRIME.2018.8430345

AUB Link

Search for the material in Aalborg University Library's search engine

Cite this

@inproceedings{eecb99411183408f81a49bc57e917f52,

title = "Multi-Channel Electrotactile Stimulation System for Touch Substitution: A Case Study",

abstract = "Reconstructing the sense of touch in prosthetics is a long-standing research challenge. To this aim, the prosthesis can be supplied with sensory arrays to measure the tactile interaction with the environment. In addition, a reliable feedback system is required to code and transmit the measured somatosensory information to the residual limb. This paper presents a multichannel electrotactile stimulation interface. Two coding schemes (mixed and uniform coding) were tested to assess the ability of the subject to localize the stimulation (identify the active pad). The outcome measures were position recognition and frequency discrimination. Our preliminary results show high accuracies in discriminating different frequency levels, i.e., 80% for low-level frequencies and 87% for high-level frequencies. In addition, the mixed coding has substantially improved the spatial localization. These are important insights regarding the development of multichannel sensing and stimulation systems for feedback in prosthetics.",

keywords = "Electrotactile stimulation, frequency coding, restoration of sense of touch, somatosensory feedback, stimulation electrodes, tactile perception",

author = "Hoda Fares and Lucia Seminara and Hussein Chible and Strahinja Dosen and Maurizio Valle",

year = "2018",

month = aug,

day = "8",

doi = "10.1109/PRIME.2018.8430345",

language = "English",

isbn = "978-1-5386-5386-9",

pages = "213--216",

booktitle = "PRIME 2018 - 14th Conference on Ph.D. Research in Microelectronics and Electronics",

publisher = "IEEE",

address = "United States",

note = "14th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2018 ; Conference date: 02-07-2018 Through 05-07-2018",

}

Fares, H, Seminara, L, Chible, H, Dosen, S & Valle, M 2018, Multi-Channel Electrotactile Stimulation System for Touch Substitution: A Case Study. in PRIME 2018 - 14th Conference on Ph.D. Research in Microelectronics and Electronics., 8430345, IEEE, pp. 213-216, 14th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2018, Prague, Czech Republic, 02/07/2018. https://doi.org/10.1109/PRIME.2018.8430345

Multi-Channel Electrotactile Stimulation System for Touch Substitution: A Case Study. / Fares, Hoda; Seminara, Lucia; Chible, Hussein et al.
PRIME 2018 - 14th Conference on Ph.D. Research in Microelectronics and Electronics. IEEE, 2018. p. 213-216 8430345.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Multi-Channel Electrotactile Stimulation System for Touch Substitution

T2 - 14th Conference on Ph.D. Research in Microelectronics and Electronics, PRIME 2018

AU - Fares, Hoda

AU - Seminara, Lucia

AU - Chible, Hussein

AU - Dosen, Strahinja

AU - Valle, Maurizio

PY - 2018/8/8

Y1 - 2018/8/8

N2 - Reconstructing the sense of touch in prosthetics is a long-standing research challenge. To this aim, the prosthesis can be supplied with sensory arrays to measure the tactile interaction with the environment. In addition, a reliable feedback system is required to code and transmit the measured somatosensory information to the residual limb. This paper presents a multichannel electrotactile stimulation interface. Two coding schemes (mixed and uniform coding) were tested to assess the ability of the subject to localize the stimulation (identify the active pad). The outcome measures were position recognition and frequency discrimination. Our preliminary results show high accuracies in discriminating different frequency levels, i.e., 80% for low-level frequencies and 87% for high-level frequencies. In addition, the mixed coding has substantially improved the spatial localization. These are important insights regarding the development of multichannel sensing and stimulation systems for feedback in prosthetics.

AB - Reconstructing the sense of touch in prosthetics is a long-standing research challenge. To this aim, the prosthesis can be supplied with sensory arrays to measure the tactile interaction with the environment. In addition, a reliable feedback system is required to code and transmit the measured somatosensory information to the residual limb. This paper presents a multichannel electrotactile stimulation interface. Two coding schemes (mixed and uniform coding) were tested to assess the ability of the subject to localize the stimulation (identify the active pad). The outcome measures were position recognition and frequency discrimination. Our preliminary results show high accuracies in discriminating different frequency levels, i.e., 80% for low-level frequencies and 87% for high-level frequencies. In addition, the mixed coding has substantially improved the spatial localization. These are important insights regarding the development of multichannel sensing and stimulation systems for feedback in prosthetics.

KW - Electrotactile stimulation

KW - frequency coding

KW - restoration of sense of touch

KW - somatosensory feedback

KW - stimulation electrodes

KW - tactile perception

UR - http://www.scopus.com/inward/record.url?scp=85052501499&partnerID=8YFLogxK

U2 - 10.1109/PRIME.2018.8430345

DO - 10.1109/PRIME.2018.8430345

M3 - Article in proceeding

AN - SCOPUS:85052501499

SN - 978-1-5386-5386-9

SP - 213

EP - 216

BT - PRIME 2018 - 14th Conference on Ph.D. Research in Microelectronics and Electronics

PB - IEEE

Y2 - 2 July 2018 through 5 July 2018

ER -

Multi-Channel Electrotactile Stimulation System for Touch Substitution: A Case Study

Abstract

Conference

Keywords

Access to Document

AUB Link

Other files and links

Fingerprint

Cite this