Dipole Cancellation as an Artifact Suppression Technique in Simultaneous Electrocorticography Stimulation and Recording

Jeffrey Lim; Po T. Wang; Haoran Pu; Charles Y. Liu; Spencer Kellis; Richard A. Andersen; Payam Heydari; An H. Do; Zoran Nenadic

doi:10.1109/NER.2019.8716961

Dipole Cancellation as an Artifact Suppression Technique in Simultaneous Electrocorticography Stimulation and Recording

Jeffrey Lim, Po T. Wang, Haoran Pu, Charles Y. Liu, Spencer Kellis, Richard A. Andersen, Payam Heydari, An H. Do, Zoran Nenadic

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

7 Scopus citations

Abstract

Fully-implantable, bi-directional brain-computer interfaces (BCIs) necessitate simultaneous cortical recording and stimulation. This is challenging since electrostimulation of cortical tissue typically causes strong artifacts that may saturate ultra-low power (ULP) analog front-ends of fully-implantable BCIs. To address this problem, we propose an efficient hardware-based method for artifact suppression that employs an auxiliary stimulator with polarity opposite to that of the primary stimulator. The feasibility of this method was explored first in simulations, and then experimentally with brain phantom tissue and electrocorticogram (ECoG) electrode grids. We find that the canceling stimulator can reduce stimulation artifacts below the saturation limit of a typical ULP front-end, while delivering only ~10% of the primary stimulator's voltage.

Original language	English (US)
Title of host publication	9th International IEEE EMBS Conference on Neural Engineering, NER 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	725-729
Number of pages	5
ISBN (Electronic)	9781538679210
DOIs	https://doi.org/10.1109/NER.2019.8716961
State	Published - May 16 2019
Event	9th International IEEE EMBS Conference on Neural Engineering, NER 2019 - San Francisco, United States Duration: Mar 20 2019 → Mar 23 2019

Publication series

Name	International IEEE/EMBS Conference on Neural Engineering, NER
Volume	2019-March
ISSN (Print)	1948-3546
ISSN (Electronic)	1948-3554

Other

Other	9th International IEEE EMBS Conference on Neural Engineering, NER 2019
Country/Territory	United States
City	San Francisco
Period	3/20/19 → 3/23/19

ASJC Scopus subject areas

Artificial Intelligence
Mechanical Engineering

Access to Document

10.1109/NER.2019.8716961

Cite this

Lim, J., Wang, P. T., Pu, H., Liu, C. Y., Kellis, S., Andersen, R. A., Heydari, P., Do, A. H., & Nenadic, Z. (2019). Dipole Cancellation as an Artifact Suppression Technique in Simultaneous Electrocorticography Stimulation and Recording. In 9th International IEEE EMBS Conference on Neural Engineering, NER 2019 (pp. 725-729). Article 8716961 (International IEEE/EMBS Conference on Neural Engineering, NER; Vol. 2019-March). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NER.2019.8716961

Dipole Cancellation as an Artifact Suppression Technique in Simultaneous Electrocorticography Stimulation and Recording. / Lim, Jeffrey; Wang, Po T.; Pu, Haoran et al.
9th International IEEE EMBS Conference on Neural Engineering, NER 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 725-729 8716961 (International IEEE/EMBS Conference on Neural Engineering, NER; Vol. 2019-March).

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

Lim, J, Wang, PT, Pu, H, Liu, CY, Kellis, S, Andersen, RA, Heydari, P, Do, AH & Nenadic, Z 2019, Dipole Cancellation as an Artifact Suppression Technique in Simultaneous Electrocorticography Stimulation and Recording. in 9th International IEEE EMBS Conference on Neural Engineering, NER 2019., 8716961, International IEEE/EMBS Conference on Neural Engineering, NER, vol. 2019-March, Institute of Electrical and Electronics Engineers Inc., pp. 725-729, 9th International IEEE EMBS Conference on Neural Engineering, NER 2019, San Francisco, United States, 3/20/19. https://doi.org/10.1109/NER.2019.8716961

Lim J, Wang PT, Pu H, Liu CY, Kellis S, Andersen RA et al. Dipole Cancellation as an Artifact Suppression Technique in Simultaneous Electrocorticography Stimulation and Recording. In 9th International IEEE EMBS Conference on Neural Engineering, NER 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 725-729. 8716961. (International IEEE/EMBS Conference on Neural Engineering, NER). doi: 10.1109/NER.2019.8716961

Lim, Jeffrey ; Wang, Po T. ; Pu, Haoran et al. / Dipole Cancellation as an Artifact Suppression Technique in Simultaneous Electrocorticography Stimulation and Recording. 9th International IEEE EMBS Conference on Neural Engineering, NER 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 725-729 (International IEEE/EMBS Conference on Neural Engineering, NER).

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Dipole Cancellation as an Artifact Suppression Technique in Simultaneous Electrocorticography Stimulation and Recording

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