TY - GEN
T1 - Causality analysis of multichannel alpha activities using multidimensional directed information
AU - Sakata, Osamu
AU - Shiina, Tsuyoshi
AU - Saito, Yoichi
PY - 1999
Y1 - 1999
N2 - Analysis of information flow pattern among different portions on the scalp is important for investigating the relation between EEG and mental activity. Therefore, far the causality analysis, that is, the detection of the propagation path and direction of each component of EEG among different portions on the scalp, we have proposed a method based on the multidimensional directed information. The performance of the method was evaluated by simulation using signal generation models. Moreover, the method was applied to the analysis of alpha activities recorded for normal subjects and a patient whose brain has organic disorder. The result showed that the detected pattern of information flow was well correlated with the disordered portion, consequently the method was a promising way for the estimation of mental activities.
AB - Analysis of information flow pattern among different portions on the scalp is important for investigating the relation between EEG and mental activity. Therefore, far the causality analysis, that is, the detection of the propagation path and direction of each component of EEG among different portions on the scalp, we have proposed a method based on the multidimensional directed information. The performance of the method was evaluated by simulation using signal generation models. Moreover, the method was applied to the analysis of alpha activities recorded for normal subjects and a patient whose brain has organic disorder. The result showed that the detected pattern of information flow was well correlated with the disordered portion, consequently the method was a promising way for the estimation of mental activities.
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M3 - Conference contribution
AN - SCOPUS:0033313665
SN - 0780356756
T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
SP - 433
BT - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
PB - IEEE
T2 - Proceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS)
Y2 - 13 October 1999 through 16 October 1999
ER -