Optimal spatial filtering of single trial EEG during imagined hand movement
نویسندگان
چکیده
منابع مشابه
Optimal spatial filtering of single trial EEG during imagined hand movement.
The development of an electroencephalograph (EEG)-based brain-computer interface (BCI) requires rapid and reliable discrimination of EEG patterns, e.g., associated with imaginary movement. One-sided hand movement imagination results in EEG changes located at contra- and ipsilateral central areas. We demonstrate that spatial filters for multichannel EEG effectively extract discriminatory informa...
متن کاملOptimal spatial ltering of single trial EEGduring imagined hand movement
The development of an EEG-based brain-computer interface (BCI) requires rapid and reliable discrimination of EEG patterns, e. g., associated with motor imagery. One sided hand movement imagination results in EEG changes located at contra-and ipsilateral central areas. We demonstrate that spatial lters for multi-channel EEG eeectively extract discriminatory information from two populations of si...
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Motor imagery (MI) based brain computer interface (BCI) systems are mostly used in the design of robotic/prosthetic arm control. MI signals are asynchronous and hence have the potential of being used in systems that require dynamic manipulation. In MI there is a significant amount of user adaptation involved; to address this issue there is a need to design BCI that is intuitive for the user to ...
متن کاملDesigning optimal spatial filters for single-trial EEG classification in a movement task.
We devised spatial filters for multi-channel EEG that lead to signals which discriminate optimally between two conditions. We demonstrate the effectiveness of this method by classifying single-trial EEGs, recorded during preparation for movements of the left or right index finger or the right foot. The classification rates for 3 subjects were 94, 90 and 84%, respectively. The filters are estima...
متن کاملEEG based zero-phase phase-locking value (PLV) and effects of spatial filtering during actual movement.
Phase-locking value (PLV) is a well-known feature in sensorimotor rhythm (SMR) based BCI. Zero-phase PLV has not been explored because it is generally regarded as the result of volume conduction. Because spatial filters are often used to enhance the amplitude (square root of band power (BP)) feature and attenuate volume conduction, they are frequently applied as pre-processing methods when comp...
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ژورنال
عنوان ژورنال: IEEE Transactions on Rehabilitation Engineering
سال: 2000
ISSN: 1063-6528,1558-0024
DOI: 10.1109/86.895946