Directed coherence analysis of normal and abnormal alpha activities

Fumito Ishikawa; Yoshio Ishikawa; Kyouichi Akutu; Yasuki Minagawa; Hajime Harada; Tsuyoshi Shiina; Jun Takemura; Youichi Saito

doi:10.1109/IEMBS.1992.5761586

Directed coherence analysis of normal and abnormal alpha activities

Fumito Ishikawa, Yoshio Ishikawa, Kyouichi Akutu, Yasuki Minagawa, Hajime Harada, Tsuyoshi Shiina, Jun Takemura, Youichi Saito

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This report concerns with the results of causal analysis of the diffuse distributed alpha type EEG with frequencies between 7.0 Hz and 13.5 Hz which are selected from our EEG data base. We have introduced a new parameter which indicates causal relation between different points on the scalp which we have named "directed coherence." Directed coherence analysis can express correlation with directions between time series in the frequency domain. By the result of this directed coherence analysis we have revealed an interesting common "structure" of the "causal" relations for eight scalop positions despite of alpha peak frequencies.

Original language	English
Title of host publication	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
Editors	Swamy Laxminarayan, Jean Pierre Morucci, Jean Louis Coatrieux, Robert Plonsey
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2558-2559
Number of pages	2
ISBN (Electronic)	0780307852
DOIs	https://doi.org/10.1109/IEMBS.1992.5761586
Publication status	Published - 1992
Externally published	Yes
Event	14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992 - Paris, France Duration: 1992 Oct 29 → 1992 Nov 1

Publication series

Name	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
Volume	6
ISSN (Print)	1557-170X

Conference

Conference	14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
Country/Territory	France
City	Paris
Period	92/10/29 → 92/11/1

ASJC Scopus subject areas

Signal Processing
Biomedical Engineering
Computer Vision and Pattern Recognition
Health Informatics

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10.1109/IEMBS.1992.5761586

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Ishikawa, F., Ishikawa, Y., Akutu, K., Minagawa, Y., Harada, H., Shiina, T., Takemura, J., & Saito, Y. (1992). Directed coherence analysis of normal and abnormal alpha activities. In S. Laxminarayan, J. P. Morucci, J. L. Coatrieux, & R. Plonsey (Eds.), Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992 (pp. 2558-2559). [5761586] (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; Vol. 6). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEMBS.1992.5761586

Directed coherence analysis of normal and abnormal alpha activities. / Ishikawa, Fumito; Ishikawa, Yoshio; Akutu, Kyouichi et al.

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992. ed. / Swamy Laxminarayan; Jean Pierre Morucci; Jean Louis Coatrieux; Robert Plonsey. Institute of Electrical and Electronics Engineers Inc., 1992. p. 2558-2559 5761586 (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; Vol. 6).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ishikawa, F, Ishikawa, Y, Akutu, K, Minagawa, Y, Harada, H, Shiina, T, Takemura, J & Saito, Y 1992, Directed coherence analysis of normal and abnormal alpha activities. in S Laxminarayan, JP Morucci, JL Coatrieux & R Plonsey (eds), Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992., 5761586, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS, vol. 6, Institute of Electrical and Electronics Engineers Inc., pp. 2558-2559, 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992, Paris, France, 92/10/29. https://doi.org/10.1109/IEMBS.1992.5761586

Ishikawa F, Ishikawa Y, Akutu K, Minagawa Y, Harada H, Shiina T et al. Directed coherence analysis of normal and abnormal alpha activities. In Laxminarayan S, Morucci JP, Coatrieux JL, Plonsey R, editors, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992. Institute of Electrical and Electronics Engineers Inc. 1992. p. 2558-2559. 5761586. (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS). doi: 10.1109/IEMBS.1992.5761586

Ishikawa, Fumito ; Ishikawa, Yoshio ; Akutu, Kyouichi et al. / Directed coherence analysis of normal and abnormal alpha activities. Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992. editor / Swamy Laxminarayan ; Jean Pierre Morucci ; Jean Louis Coatrieux ; Robert Plonsey. Institute of Electrical and Electronics Engineers Inc., 1992. pp. 2558-2559 (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS).

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AB - This report concerns with the results of causal analysis of the diffuse distributed alpha type EEG with frequencies between 7.0 Hz and 13.5 Hz which are selected from our EEG data base. We have introduced a new parameter which indicates causal relation between different points on the scalp which we have named "directed coherence." Directed coherence analysis can express correlation with directions between time series in the frequency domain. By the result of this directed coherence analysis we have revealed an interesting common "structure" of the "causal" relations for eight scalop positions despite of alpha peak frequencies.

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Directed coherence analysis of normal and abnormal alpha activities

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