Conference Proceedings

Spatial Resolution of Visual Stimuli in SSVEP-based Brain-Computer Interface

J Mu, DB Grayden, Y Tan, D Oetomo

2019 9th International IEEE/EMBS Conference on Neural Engineering (NER) | IEEE | Published : 2019

Abstract

© 2019 IEEE. Communicating spatial coordinates plays a crucial role in human-robot interactions, where a given target, object, or location needs to be localized. The steady-state visual evoked potential (SSVEP) is one of the most robustly detectable signals in electroencephalography (EEG)-based brain-computer interfaces (BCIs). However, the spatial resolution of the visual stimuli in a SSVEP-based BCI needs to be characterized for localization applications. In this study, we demonstrate that the influence of an adjacent stimulus attenuates to the baseline level when it is outside the paracentral region of human field of view (FOV) based on data collected from five subjects. This conservative..

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