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A Novel µECoG Electrode Interface for Comparison of Local and Common Averaged Referenced Signals.

Publication ,  Journal Article
Williams, AJ; Trumpis, M; Bent, B; Chiang, C-H; Viventi, J
Published in: Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
July 2018

Micro-electrocorticography (µECoG) is a minimally invasive neural interface that allows for recording from the surface of the brain with high spatial and temporal resolution [1], [2]. However, discerning multi-unit and local field potential (LFP) activity with potentially highly-correlated signals across a dense µECoG array can be challenging. Here we describe a novel µECoG design to compare the effect of referencing recordings to a local reference electrode and common average referencing (CAR). The filtering effect and the significant increase in signal to noise ratio of the evoked response (ESNR) can be seen after re-referencing for both types of referencing. In a preliminary analysis, re-referencing the µECoG signals can increase recording performance at high contact densities in the auditory cortex. This also provides promising evidence for a versatile in-house fabricated µECoG electrode.

Duke Scholars

Published In

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

DOI

EISSN

2694-0604

ISSN

2375-7477

Publication Date

July 2018

Volume

2018

Start / End Page

5057 / 5060

Related Subject Headings

  • Microelectrodes
  • Humans
  • Electrodes, Implanted
  • Electrocorticography
  • Brain Mapping
  • Brain
 

Citation

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Williams, A. J., Trumpis, M., Bent, B., Chiang, C.-H., & Viventi, J. (2018). A Novel µECoG Electrode Interface for Comparison of Local and Common Averaged Referenced Signals. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference, 2018, 5057–5060. https://doi.org/10.1109/embc.2018.8513432
Williams, Ashley J., Michael Trumpis, Brinnae Bent, Chia-Han Chiang, and Jonathan Viventi. “A Novel µECoG Electrode Interface for Comparison of Local and Common Averaged Referenced Signals.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference 2018 (July 2018): 5057–60. https://doi.org/10.1109/embc.2018.8513432.
Williams AJ, Trumpis M, Bent B, Chiang C-H, Viventi J. A Novel µECoG Electrode Interface for Comparison of Local and Common Averaged Referenced Signals. Annual International Conference of the IEEE Engineering in Medicine and Biology Society IEEE Engineering in Medicine and Biology Society Annual International Conference. 2018 Jul;2018:5057–60.
Williams, Ashley J., et al. “A Novel µECoG Electrode Interface for Comparison of Local and Common Averaged Referenced Signals.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference, vol. 2018, July 2018, pp. 5057–60. Epmc, doi:10.1109/embc.2018.8513432.
Williams AJ, Trumpis M, Bent B, Chiang C-H, Viventi J. A Novel µECoG Electrode Interface for Comparison of Local and Common Averaged Referenced Signals. Annual International Conference of the IEEE Engineering in Medicine and Biology Society IEEE Engineering in Medicine and Biology Society Annual International Conference. 2018 Jul;2018:5057–5060.

Published In

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

DOI

EISSN

2694-0604

ISSN

2375-7477

Publication Date

July 2018

Volume

2018

Start / End Page

5057 / 5060

Related Subject Headings

  • Microelectrodes
  • Humans
  • Electrodes, Implanted
  • Electrocorticography
  • Brain Mapping
  • Brain