TY - GEN
T1 - Desynchronization of the mu oscillatory activity during motor imagery
T2 - 2015 3rd International Winter Conference on Brain-Computer Interface, BCI 2015
AU - Kim, Hyun Chul
AU - Lee, Jong Hwan
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/3/30
Y1 - 2015/3/30
N2 - The purpose of this study is to identify the correspondence between distinct brain oscillatory activity acquired from electroencephalography (EEG) and blood oxygenation level dependent signals obtained from functional magnetic resonance imaging (fMRI). In this preliminary study, the changes in the mu rhythmic power (8-13Hz) during motor imagery tasks in the EEG data simultaneously acquired with fMRI data were examined. The average mu powers during the left-hand (LH)/right-hand (RH) motor imagery tasks were separately estimated after removing dominant artifacts, such as gradient artifact, ballistocardiogram artifact, and helium-pump artifact. As a result, the relatively lower mu power of the contralateral motor area during LH/RH motor imagery tasks was observed compared to ipsilateral side. This observation indicates a functional signature for motor imagery tasks.
AB - The purpose of this study is to identify the correspondence between distinct brain oscillatory activity acquired from electroencephalography (EEG) and blood oxygenation level dependent signals obtained from functional magnetic resonance imaging (fMRI). In this preliminary study, the changes in the mu rhythmic power (8-13Hz) during motor imagery tasks in the EEG data simultaneously acquired with fMRI data were examined. The average mu powers during the left-hand (LH)/right-hand (RH) motor imagery tasks were separately estimated after removing dominant artifacts, such as gradient artifact, ballistocardiogram artifact, and helium-pump artifact. As a result, the relatively lower mu power of the contralateral motor area during LH/RH motor imagery tasks was observed compared to ipsilateral side. This observation indicates a functional signature for motor imagery tasks.
KW - Electroencephalography (EEG)
KW - functional magnetic resonance imaging (fMRI)
KW - motor imagery
KW - mu rhythmic power
KW - simultaneous EEG-fMRI
UR - http://www.scopus.com/inward/record.url?scp=84927937655&partnerID=8YFLogxK
U2 - 10.1109/IWW-BCI.2015.7073036
DO - 10.1109/IWW-BCI.2015.7073036
M3 - Conference contribution
AN - SCOPUS:84927937655
T3 - 3rd International Winter Conference on Brain-Computer Interface, BCI 2015
BT - 3rd International Winter Conference on Brain-Computer Interface, BCI 2015
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 12 January 2015 through 14 January 2015
ER -