Title :
Using adaptive autoregressive parameters for a brain-computer-interface experiment
Author :
Schloegl, A. ; Lugger, K. ; Pfurtscheller, G.
Author_Institution :
Ludwig Boltzmann Inst. for Med. Inf. & Neuroinf., Graz, Austria
fDate :
30 Oct-2 Nov 1997
Abstract :
In an online EEG discrimination task, continuous feedback was presented. The EEG was recorded during imagination of left and right hand movement and analyzed with adaptive autoregressive parameters. The parameter discrimination was fed back in form of a rectangular bar on a computer screen over a period of four seconds. An online classification result of more than 90% was obtained after a few sessions
Keywords :
adaptive signal processing; autoregressive processes; computerised instrumentation; electroencephalography; medical signal processing; online operation; signal classification; 4 s; adaptive autoregressive parameters; brain-computer interface; computer screen; continuous feedback; hand movement imagination; left hand movement; online EEG discrimination task; online classification; rectangular bar; right hand movement; Biomedical computing; Biomedical informatics; Brain modeling; Delay estimation; Electroencephalography; Frequency; Least squares approximation; Linear discriminant analysis; Neurofeedback; Parameter estimation;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.757002
