Retinotopic and topographic analyses with gaze restriction for steady-state visual evoked potentials.

ABSTRACT: Although the mechanisms of steady-state visual evoked potentials (SSVEPs) have been well studied, none of them have been implemented with strictly experimental conditions. Our objective was to create an ideal observer condition to exploit the features of SSVEPs. We present here an electroencephalographic (EEG) eye tracking experimental paradigm that provides biofeedback for gaze restriction during the visual stimulation. Specifically, we designed an EEG eye tracking synchronous data recording system for successful trial selection. Forty-six periodic flickers within a visual field of 11.5° were successively presented to evoke SSVEP responses, and online biofeedback based on an eye tracker was provided for gaze restriction. For eight participants, SSVEP responses in the visual field and topo

SUBMITTER: Zhang N 

PROVIDER: S-EPMC6418283 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature