Coupling between infraslow activities and high-frequency oscillations precedes seizure onset

Hashimoto, Hiroaki; Khoo, Hui Ming; Yanagisawa, Takufumi; Tani, Naoki; Oshino, Satoru; Kishima, Haruhiko; Hirata, Masayuki

doi:https://doi.org/10.1002/epi4.12425

Coupling between infraslow activities and high-frequency oscillations precedes seizure onset

Hashimoto, Hiroaki; Khoo, Hui Ming; Yanagisawa, Takufumi et al.

Epilepsia Open, 2020, 5(3), 501-506

アクセス数:1,363件（2025-08-29 12:19 集計）

固定URL: https://hdl.handle.net/11094/95536

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タイトル	Coupling between infraslow activities and high-frequency oscillations precedes seizure onset
著者	NRID 1000050770674 1000050770674 著者名 Hashimoto, Hiroaki
	NRID 1000070591022 1000070591022 ORCID 0000-0002-4039-0520 0000-0002-4039-0520 researchmap permalink hmkhoo hmkhoo Scopus Author ID 55314143200 55314143200 著者名 Khoo, Hui Ming
	NRID 1000090533802 1000090533802 researchmap permalink takufumi takufumi Scopus Author ID 16553812400 16553812400 ORCID 0000-0002-2057-0612 0000-0002-2057-0612 著者名 Yanagisawa, Takufumi
	NRID 1000020598370 1000020598370 researchmap permalink n_taniOsakaUniv n_taniOsakaUniv Scopus Author ID 7103335692 7103335692 著者名 Tani, Naoki
	NRID 1000040403050 1000040403050 ORCID 0000-0002-4248-2322 0000-0002-4248-2322 researchmap permalink handai_ns_oshino handai_ns_oshino Scopus Author ID 6602717325 6602717325 著者名 Oshino, Satoru
	NRID 1000010332743 1000010332743 researchmap permalink hkishima hkishima Scopus Author ID 6603783358 6603783358 ORCID 0000-0002-9041-2337 0000-0002-9041-2337 著者名 Kishima, Haruhiko
	NRID 1000030372626 1000030372626 researchmap permalink hiratty hiratty Scopus Author ID 7403352253 7403352253 著者名 Hirata, Masayuki
キーワード等	high-frequency oscillation
	infraslow activity
	intracranial electroencephalogram
	phase-amplitude coupling
	theta band
内容	Hashimoto H., Khoo H.M., Yanagisawa T., et al. Coupling between infraslow activities and high-frequency oscillations precedes seizure onset. Epilepsia Open 5, 501 (2020); https://doi.org/10.1002/epi4.12425.
抄録	Infraslow activities and high-frequency oscillations (HFOs) are observed in seizure-onset zones. However, the relation between them remains unclear. In this study, we investigated phase-amplitude coupling between infraslow phase (0.016-1 Hz) and HFOs' amplitude of focal impaired awareness seizures followed by focal to bilateral tonic-clonic seizures, in a 28-year-old right-handed man with a dysembryoplastic neuroepithelial tumor. We recorded five habitual seizures. After the time of seizure onset, a significant increase in the power of HFOs was observed, and the power was significantly coupled with θ (4-8 Hz) phase. In contrast, coupling of infraslow activities and HFOs surged a few minutes before the seizure-onset time, and ictal HFOs discharged after that. Collectively, our results show that coupling of infraslow activities and HFOs precedes the seizure-onset time. We infer that such coupling may be a potential biomarker for seizure prediction.
出版者	Blackwell Publishing Ltd
収録物名	Epilepsia Open
巻(号)	5(3)
ページ	501-506
刊行年月	2020-09-01
言語	英語
ハンドルURL	https://hdl.handle.net/11094/95536
eISSN	24709239
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1002/epi4.12425
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Epilepsia Open. 2020, 5(3), p. 501-506
DC.title	Coupling between infraslow activities and high-frequency oscillations precedes seizure onset
DC.creator	Hashimoto, Hiroaki
	Khoo, Hui Ming
	Yanagisawa, Takufumi
	Tani, Naoki
	Oshino, Satoru
	Kishima, Haruhiko
	Hirata, Masayuki
DC.publisher	Blackwell Publishing Ltd
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2020-09-01
DC.identifier	https://doi.org/10.1002/epi4.12425
DC.subject	high-frequency oscillation
	infraslow activity
	intracranial electroencephalogram
	phase-amplitude coupling
	theta band
DC.description	Hashimoto H., Khoo H.M., Yanagisawa T., et al. Coupling between infraslow activities and high-frequency oscillations precedes seizure onset. Epilepsia Open 5, 501 (2020); https://doi.org/10.1002/epi4.12425.
DCTERMS.abstract	Infraslow activities and high-frequency oscillations (HFOs) are observed in seizure-onset zones. However, the relation between them remains unclear. In this study, we investigated phase-amplitude coupling between infraslow phase (0.016-1 Hz) and HFOs' amplitude of focal impaired awareness seizures followed by focal to bilateral tonic-clonic seizures, in a 28-year-old right-handed man with a dysembryoplastic neuroepithelial tumor. We recorded five habitual seizures. After the time of seizure onset, a significant increase in the power of HFOs was observed, and the power was significantly coupled with θ (4-8 Hz) phase. In contrast, coupling of infraslow activities and HFOs surged a few minutes before the seizure-onset time, and ictal HFOs discharged after that. Collectively, our results show that coupling of infraslow activities and HFOs precedes the seizure-onset time. We infer that such coupling may be a potential biomarker for seizure prediction.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	95536
citation_title	Coupling between infraslow activities and high-frequency oscillations precedes seizure onset
citation_author	Hashimoto, Hiroaki
	Khoo, Hui Ming
	Yanagisawa, Takufumi
	Tani, Naoki
	Oshino, Satoru
	Kishima, Haruhiko
	Hirata, Masayuki
citation_publisher	Blackwell Publishing Ltd
citation_language	英語
citation_date	2020-09-01
citation_journal_title	Epilepsia Open
citation_volume	5
citation_issue	3
citation_firstpage	501
citation_lastpage	506
citation_doi	https://doi.org/10.1002/epi4.12425
citation_public_url	https://hdl.handle.net/11094/95536

Coupling between infraslow activities and high-frequency oscillations precedes seizure onset

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