Title :
"Virtual keyboard" controlled by spontaneous EEG activity
Author :
Obermaier, B. ; Müller, G.R. ; Pfurtscheller, G.
Author_Institution :
Ludwig Boltzmann Inst. of Medical Informatics & Neuroinformatics, Graz Univ. of Technol., Austria
Abstract :
A "virtual keyboard" (VK) is a letter spelling device operated for example by spontaneous electroencephalogram (EEG), whereby the EEC is modulated by mental hand and leg motor imagery. We report on three able-bodied subjects, operating the VK. The ability in the use of the VK varies between 0.85 and 0.5 letters/min in error-free writing.
Keywords :
electroencephalography; handicapped aids; spelling aids; user interfaces; electroencephalogram; error-free writing; letter spelling device; mental hand motor imagery; mental leg motor imagery; spontaneous EEG activity; virtual keyboard; Biomedical engineering; Biomedical informatics; Birth disorders; Electroencephalography; Feedback; Head; Keyboards; Leg; Monitoring; Writing; Algorithms; Artificial Intelligence; Cerebral Cortex; Cognition; Communication Aids for Disabled; Computer Peripherals; Electroencephalography; Evoked Potentials; Humans; Pattern Recognition, Automated; Reproducibility of Results; Sensitivity and Specificity; User-Computer Interface; Word Processing;
Journal_Title :
Neural Systems and Rehabilitation Engineering, IEEE Transactions on
DOI :
10.1109/TNSRE.2003.816866
