SSVEP-based functional electrical stimulation system for motor control of patients with spinal cord injury

R. H. Sohn; J. S. Son; H. J. Hwang; C. H. Im; Y. H. Kim

doi:10.1007/978-3-642-14515-5_167

SSVEP-based functional electrical stimulation system for motor control of patients with spinal cord injury

R. H. Sohn, J. S. Son, H. J. Hwang, C. H. Im, Y. H. Kim

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

The purpose of this study was to develop a SSVEP-based Brain-machine interface (BMI) rehabilitation training system for spinal cord injured persons. We designed a visual stimulation program with two checkerboard images flickering using C#. Six electrodes were attached at locations PO_Z, PO ₃, PO₄, O_Z, O₁ and O₂, according to the international 10-20 system, and reference electrodes placed at A₁ and A₂. Electroencephalographic (EEG) signals were amplified 5,000 times with a digital low-pass filter with a cutoff frequency of 35 Hz and recorded at the sampling rate of 200Hz with 10-bit resolution using BIOPAC system. Fast Fourier transform (FFT) based spectrum estimation method was applied to control the functional electrical stimulation (FES) rehabilitation system. FES control signals were digitized and transferred from PC to the microcontroller using Bluetooth communication. The frequency of FES was set to 10~20 Hz, the pulse width at 200us, and the stimulation amplitude at 10~20mA. This study showed that the present SSVEP based rehabilitation training system could make successfully muscle movements, inducing electrical stimulation of forearm and lower-arm muscles in healthy volunteers.

Original language	English (US)
Title of host publication	6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech
Pages	655-658
Number of pages	4
DOIs	https://doi.org/10.1007/978-3-642-14515-5_167
State	Published - 2010
Externally published	Yes
Event	6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech - Singapore, Singapore Duration: Aug 1 2010 → Aug 6 2010

Publication series

Name	IFMBE Proceedings
Volume	31 IFMBE
ISSN (Print)	1680-0737

Conference

Conference	6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech
Country/Territory	Singapore
City	Singapore
Period	8/1/10 → 8/6/10

All Science Journal Classification (ASJC) codes

Bioengineering
Biomedical Engineering

Keywords

Assistive technology
BMI
FES
SSVEP

Access to Document

10.1007/978-3-642-14515-5_167

Cite this

Sohn, R. H., Son, J. S., Hwang, H. J., Im, C. H., & Kim, Y. H. (2010). SSVEP-based functional electrical stimulation system for motor control of patients with spinal cord injury. In 6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech (pp. 655-658). (IFMBE Proceedings; Vol. 31 IFMBE). https://doi.org/10.1007/978-3-642-14515-5_167

Sohn, R. H. ; Son, J. S. ; Hwang, H. J. et al. / SSVEP-based functional electrical stimulation system for motor control of patients with spinal cord injury. 6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech. 2010. pp. 655-658 (IFMBE Proceedings).

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title = "SSVEP-based functional electrical stimulation system for motor control of patients with spinal cord injury",

abstract = "The purpose of this study was to develop a SSVEP-based Brain-machine interface (BMI) rehabilitation training system for spinal cord injured persons. We designed a visual stimulation program with two checkerboard images flickering using C#. Six electrodes were attached at locations POZ, PO 3, PO4, OZ, O1 and O2, according to the international 10-20 system, and reference electrodes placed at A1 and A2. Electroencephalographic (EEG) signals were amplified 5,000 times with a digital low-pass filter with a cutoff frequency of 35 Hz and recorded at the sampling rate of 200Hz with 10-bit resolution using BIOPAC system. Fast Fourier transform (FFT) based spectrum estimation method was applied to control the functional electrical stimulation (FES) rehabilitation system. FES control signals were digitized and transferred from PC to the microcontroller using Bluetooth communication. The frequency of FES was set to 10~20 Hz, the pulse width at 200us, and the stimulation amplitude at 10~20mA. This study showed that the present SSVEP based rehabilitation training system could make successfully muscle movements, inducing electrical stimulation of forearm and lower-arm muscles in healthy volunteers.",

keywords = "Assistive technology, BMI, FES, SSVEP",

author = "Sohn, {R. H.} and Son, {J. S.} and Hwang, {H. J.} and Im, {C. H.} and Kim, {Y. H.}",

year = "2010",

doi = "10.1007/978-3-642-14515-5_167",

language = "English (US)",

isbn = "9783540790389",

series = "IFMBE Proceedings",

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booktitle = "6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech",

note = "6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech ; Conference date: 01-08-2010 Through 06-08-2010",

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Sohn, RH, Son, JS, Hwang, HJ, Im, CH & Kim, YH 2010, SSVEP-based functional electrical stimulation system for motor control of patients with spinal cord injury. in 6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech. IFMBE Proceedings, vol. 31 IFMBE, pp. 655-658, 6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech, Singapore, Singapore, 8/1/10. https://doi.org/10.1007/978-3-642-14515-5_167

SSVEP-based functional electrical stimulation system for motor control of patients with spinal cord injury. / Sohn, R. H.; Son, J. S.; Hwang, H. J. et al.
6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech. 2010. p. 655-658 (IFMBE Proceedings; Vol. 31 IFMBE).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

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AU - Sohn, R. H.

AU - Son, J. S.

AU - Hwang, H. J.

AU - Im, C. H.

AU - Kim, Y. H.

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N2 - The purpose of this study was to develop a SSVEP-based Brain-machine interface (BMI) rehabilitation training system for spinal cord injured persons. We designed a visual stimulation program with two checkerboard images flickering using C#. Six electrodes were attached at locations POZ, PO 3, PO4, OZ, O1 and O2, according to the international 10-20 system, and reference electrodes placed at A1 and A2. Electroencephalographic (EEG) signals were amplified 5,000 times with a digital low-pass filter with a cutoff frequency of 35 Hz and recorded at the sampling rate of 200Hz with 10-bit resolution using BIOPAC system. Fast Fourier transform (FFT) based spectrum estimation method was applied to control the functional electrical stimulation (FES) rehabilitation system. FES control signals were digitized and transferred from PC to the microcontroller using Bluetooth communication. The frequency of FES was set to 10~20 Hz, the pulse width at 200us, and the stimulation amplitude at 10~20mA. This study showed that the present SSVEP based rehabilitation training system could make successfully muscle movements, inducing electrical stimulation of forearm and lower-arm muscles in healthy volunteers.

AB - The purpose of this study was to develop a SSVEP-based Brain-machine interface (BMI) rehabilitation training system for spinal cord injured persons. We designed a visual stimulation program with two checkerboard images flickering using C#. Six electrodes were attached at locations POZ, PO 3, PO4, OZ, O1 and O2, according to the international 10-20 system, and reference electrodes placed at A1 and A2. Electroencephalographic (EEG) signals were amplified 5,000 times with a digital low-pass filter with a cutoff frequency of 35 Hz and recorded at the sampling rate of 200Hz with 10-bit resolution using BIOPAC system. Fast Fourier transform (FFT) based spectrum estimation method was applied to control the functional electrical stimulation (FES) rehabilitation system. FES control signals were digitized and transferred from PC to the microcontroller using Bluetooth communication. The frequency of FES was set to 10~20 Hz, the pulse width at 200us, and the stimulation amplitude at 10~20mA. This study showed that the present SSVEP based rehabilitation training system could make successfully muscle movements, inducing electrical stimulation of forearm and lower-arm muscles in healthy volunteers.

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Sohn RH, Son JS, Hwang HJ, Im CH, Kim YH. SSVEP-based functional electrical stimulation system for motor control of patients with spinal cord injury. In 6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech. 2010. p. 655-658. (IFMBE Proceedings). doi: 10.1007/978-3-642-14515-5_167

SSVEP-based functional electrical stimulation system for motor control of patients with spinal cord injury

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