Abstract
We describe an early-stage prototype of a new wireless electrophysiological sensor system, called NeuroDot, which can measure neuroelectric potentials and fields at the scalp in a new modality called Electric Field Encephalography (EFEG). We aim to establish the physical validity of the EFEG modality, and examine some of its properties and relative merits compared to EEG. We designed a wireless neuroelectric measurement device based on the Texas Instrument ADS1299 Analog Front End platform and a sensor montage, using custom electrodes, to simultaneously measure EFEG and spatially averaged EEG over a localized patch of the scalp (2 cm × 2 cm). The signal properties of each modality were compared across tests of noise floor, Berger effect, steady-state visually evoked potential (ssVEP), signal-to-noise ratio (SNR), and others. In order to compare EFEG to EEG modalities in the frequency domain, we use a novel technique to compute spectral power densities and derive narrow-band SNR estimates for ssVEP signals. A simple binary choice brain-computer-interface (BCI) concept based on ssVEP is evaluated. Also, we present examples of high quality recording of transient Visually Evoked Potentials and Fields (tVEPF) that could be used fo...Continue Reading
References
Feb 27, 2001·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·T C FerreeD M Tucker
Mar 29, 2005·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·P TallgrenJ Voipio
Jan 10, 2006·Physiological Measurement·Hans J ScheerLutz Trahms
Sep 27, 2007·Scientific American·R Douglas Fields
Dec 20, 2011·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Yu Mike ChiGert Cauwenberghs
Jan 19, 2012·Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society·S FilipeR Guillemaud
Jan 1, 2010·IEEE Reviews in Biomedical Engineering·Yu Mike ChiGert Cauwenberghs
Sep 26, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Yury Petrov
Jul 12, 2013·PloS One·Yury Petrov, Srinivas Sridhar
Oct 8, 2013·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Daniel M AlschulerJürgen Kayser
Jan 9, 2014·NeuroImage·Yury PetrovSrinivas Sridhar
May 29, 2015·Physiological Measurement·T S GrummettS P Fitzgibbon
Nov 28, 2017·Scientific Reports·Amanda K RobinsonMarlene Behrmann
Citations
Mar 23, 2019·Military Medicine·Craig VersekSrinivas Sridhar
Jan 5, 2020·Journal of Medical Systems·Yashika Arora, Shubhajit Roy Chowdhury
May 7, 2021·Eye and Brain·Craig VersekSrinivas Sridhar