Brain-computer interfaces (BCI) have the potential to improve the quality of
life for persons with paralysis. Sub-scalp EEG provides an alternative BCI
signal acquisition method that compromises between the limitations of
traditional EEG systems and the risks associated with intracranial electrodes,
and has shown promise in long-term seizure monitoring. However, sub-scalp EEG
has not yet been assessed for suitability in BCI applications. This study
presents a preliminary comparison of visually-evoked potentials (VEPs) recorded
using subscalp and endovascular stent electrodes in a sheep. Sub-scalp
electrodes recorded comparable VEP amplitude, signal-to-noise ratio and
bandwidth to the stent electrodes.Comment: 4 pages, 5 figures, EMBC 2023 submissio