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Advanced Technique for EEG and HRV Measurement Using Around-Ear Capacitive Electrodes

Year: 2024

Type: conference-paper

Abstract: Long-term electroencephalogram (EEG) monitoring requires devices that are unobtrusive, comfortable, and user-friendly. Capacitive electrodes, unlike gel or dry electrodes, do not require direct galvanic skin contact, making them ideal for extended use. This paper investigates the efficacy of capacitive electrodes for recording four biopotential channels from around-ear areas. A printed circuit board was developed and assessed through an alpha-block experiment. The posterior-ear capacitive EEG achieved a statistically significant power gain (APSD) of 2.77 dB in the alpha band and 5.84 dB at 10 Hz. Additionally, a mean absolute error (MAE) of 8.9 milliseconds was observed between heart rate variability (HRV) measurements from a capacitive superior-ear electrode and shoulder ECG. These results indicate that around-ear capacitive electrodes are suitable for multimodal biopotential applications, offering a promising solution for long-term EEG monitoring.

Source: IEEE International Conference on Body Sensor Networks (BSN)

DOI: 10.1109/bsn63547.2024.10780484

Authors: Usman Qamar Shaikh, Anubha Manju Kalra, Andrew Lowe, Imran Khan Niazi

Institutions: Auckland University of Technology, New Zealand College of Chiropractic

Language: English

Topic: EEG and Brain-Computer Interfaces

Subfield: Cognitive Neuroscience

Field: Neuroscience

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: green

OpenAlex ID: W4405271685

FWCI:

Cites: 4

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Related to: 10