In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 790 ( 2013-9), p. 615-618
Abstract:
To address the issue that how the EEG-EMG signals change according to different motion modes, an experiment was conducted on ten subjects with three tasks performing the voluntary, stimulated and imaginary finger flexion activities. The experiment was set two programs including 10s and 2s time intervals. Electroencephalogram (EEG) from C3/C4 channels and electromyogram (EMG) from flexor digitorum superficialis were recorded simultaneously. Besides the threshold detection of wave peaks between two points, morlet wavlet-based time-frequency analysis was adopted to study the independent variation mechanisms between EEG and EMG under different motion modes. The results indicated that EMG signals of 2s intervals exhibited a similar trend with 10s intervals. The EMG energy increased over 50 Hz when actions occurred. On the contrary, there were no significant changes in imaginary task. In addition, EEG signals performed obviously different. No pronounced similar changes were found in 10s and 2s intervals. Finally, the results demonstrated that EEG-EMG causality was high during 2s intervals in stimulation task.
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.790
DOI:
10.4028/www.scientific.net/AMR.790.615
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2013
detail.hit.zdb_id:
2265002-7
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