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On the automated removal of artifacts related to head movement from the EEG
Ian Daly1, Martin Billinger, Reinhold Scherer
1Institute for Knowledge Discovery, Laboratory of Brain–Computer Interfaces, Graz University of Technology, 8010 Graz, Austria.
Abstract:
Contamination of the electroencephalogram (EEG) by artifacts related to head movement is a major cause of reduced signal quality. This is a problem in both neuroscience and other uses of the EEG. To attempt to reduce the influence, on the EEG, of artifacts related to head movement, an accelerometer is placed on the head and independent component analysis is applied to attempt to separate artifacts which are statistically related to head movements. To evaluate the method, EEG and accelerometer measurements are made from 14 individuals with Cerebral palsy attempting to control a sensorimotor rhythm based brain-computer interface. Results show that the approach significantly reduces the influence of head movement related artifacts in the EEG.
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