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EEG electrode digitization with commercial virtual reality hardware

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  • Christopher C Cline
  • Christopher Coogan
  • Bin He

Abstract

Accurate spatial co-registration of EEG electrode positions with individual head models is an important component for EEG source localization and imaging. Due to variations in head shape between individuals, this requires measurements of electrode locations in each individual. Existing hardware for digitization can be accurate, but also relatively expensive. With the goal of making digitization more accessible for a range of research laboratories, we have developed an open-source software tool that can make use of less expensive consumer virtual reality hardware for EEG electrode digitization. Here we describe our developed VRDigitizer system and compare it to existing digitization solutions. Experimental evaluations were performed in a phantom head model and in 12 human subjects. In our comparison experiments, VRDigitizer was able to measure electrode positions with a mean error of 3.74 mm, compared to 1.73 mm and 2.98 mm for the commercial systems tested.

Suggested Citation

  • Christopher C Cline & Christopher Coogan & Bin He, 2018. "EEG electrode digitization with commercial virtual reality hardware," PLOS ONE, Public Library of Science, vol. 13(11), pages 1-13, November.
    • Handle: RePEc:plo:pone00:0207516
    DOI: 10.1371/journal.pone.0207516
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