Anasynchronously controlled EEG-based virtual keyboard:: Improvement of the spelling rate

被引：221

作者：

Scherer, R ^{[1
]}

Müller, GR

Neuper, C

Graimann, B

Pfurtscheller, G

机构：

[1] Graz Univ Technol, Inst Human Comp Interfaces, A-8010 Graz, Austria

[2] Graz Univ Technol, Ludwig Boltzmann Inst Med Informat & Neuroinforma, A-8010 Graz, Austria

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 2004年 / 51卷 / 06期

基金：

奥地利科学基金会;

关键词：

asynchronous control; brain-computer interface (130); motor imagery; virtual keyboard (VK);

D O I：

10.1109/TBME.2004.827062

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

An improvement of the information transfer rate of brain-computer communication is necessary for the creation of more powerful and convenient applications. This paper presents an asynchronously controlled three-class brain-computer interface-based spelling device [virtual keyboard (VK)], operated by spontaneous electroencephalogram and modulated by motor imagery. Of the first results of three able-bodied subjects operating the VK, two were successful, showing an improvement of the spelling rate sigma, the number of correctly spelled letters/min, up to sigma = 3.38 (average sigma = 1.99).

引用

页码：979 / 984

页数：6

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