A Four-Class Phase-Coded SSVEP BCI at 60Hz Using Refresh Rate

A four-class brain-computer interface (BCI) system based on steady-state visual evoked potentials (SSVEPs) was developed by presenting phase-coded 60Hz stimulations on a 240Hz LCD monitor. The task-related component analysis (TRCA) algorithm was used to detect SSVEPs with individual training data. I...

Full description

Saved in:
Bibliographic Details
Main Authors: Jiang, Lu, Wang, Yijun, Pei, Weihua, Chen, Hongda
Format: Conference Proceeding
Language:English
Subjects:
Classification algorithms
Electrodes
Electroencephalography
Liquid crystal displays
Monitoring
Task analysis
Visualization
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A four-class brain-computer interface (BCI) system based on steady-state visual evoked potentials (SSVEPs) was developed by presenting phase-coded 60Hz stimulations on a 240Hz LCD monitor. The task-related component analysis (TRCA) algorithm was used to detect SSVEPs with individual training data. In the BCI experiment with 10 subjects, the system achieved high classification accuracy of 94.50±6.70% and 92.71±7.56% in offline and online BCI experiments, resulting in information transfer rates (ITR) of 19.95±4.36 and 18.81±4.74 bpm, respectively. The behavioral tests on visual comfortableness and perception of flickering reveal that the proposed BCI system is very comfortable to use without any perception of flicker.
ISSN:1558-4615
2694-0604
DOI:10.1109/EMBC.2019.8857326