Live demonstration: High-fidelity brain electrical activity from automatic noise cancelling tripolar concentric ring electrode sensor
Document Type
Conference Proceeding
Date of Original Version
12-21-2017
Abstract
Tripolar concentric ring electrode (TCRE) sensors have unique properties. These sensors have been used to acquire various bio-signals such as: electroencephalography (EEG), electrocardiography (ECG), and electromyography (EMG). Compared to conventional disc electrode signals TCRE EEG (tEEG) has four times better signal-to-noise ratio, eleven times better mutual information and spatial resolution. Since the electrodes of the TCRE sensor are a millimeter apart, signals arising from distant sources produce nearly the same potential on each electrode. Therefore, when the difference of the signals is taken between the electrodes the common signal is cancelled. We have found significant improvements in real-time brain computer interfacing with tEEG compared to EEG. We have also found that we can see higher-frequency signals with tEEG, up to 425 Hz so far, compared to EEG.
Publication Title, e.g., Journal
Proceedings of IEEE Sensors
Volume
2017-December
Citation/Publisher Attribution
Besio, Walter. "Live demonstration: High-fidelity brain electrical activity from automatic noise cancelling tripolar concentric ring electrode sensor." Proceedings of IEEE Sensors 2017-December, (2017). doi: 10.1109/ICSENS.2017.8234029.