Association between long-range temporal correlations in intrinsic EEG activity and subjective sense of identity

Abstract The long-range temporal correlation (LRTC) in resting-state intrinsic brain activity is known to be associated with temporal behavioral patterns, including decision making based on internal criteria such as self-knowledge. However, the association between the neuronal LRTC and the subjectiv...

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Autores principales:	Kazumi Sugimura, Yasuhiro Iwasa, Ryota Kobayashi, Tatsuru Honda, Junya Hashimoto, Shiho Kashihara, Jianhong Zhu, Kazuki Yamamoto, Tsuyoshi Kawahara, Mayo Anno, Risa Nakagawa, Kai Hatano, Takashi Nakao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fa21ac4acb0a4f33b31ea67dbdaa825b
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spelling	oai:doaj.org-article:fa21ac4acb0a4f33b31ea67dbdaa825b2021-12-02T15:22:56ZAssociation between long-range temporal correlations in intrinsic EEG activity and subjective sense of identity10.1038/s41598-020-79444-22045-2322https://doaj.org/article/fa21ac4acb0a4f33b31ea67dbdaa825b2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79444-2https://doaj.org/toc/2045-2322Abstract The long-range temporal correlation (LRTC) in resting-state intrinsic brain activity is known to be associated with temporal behavioral patterns, including decision making based on internal criteria such as self-knowledge. However, the association between the neuronal LRTC and the subjective sense of identity remains to be explored; in other words, whether our subjective sense of consistent self across time relates to the temporal consistency of neural activity. The present study examined the relationship between the LRTC of resting-state scalp electroencephalography (EEG) and a subjective sense of identity measured by the Erikson Psychosocial Stage Inventory (EPSI). Consistent with our prediction based on previous studies of neuronal-behavioral relationships, the frontocentral alpha LRTC correlated negatively with identity confusion. Moreover, from the descriptive analyses, centroparietal beta LRTC showed negative correlations with identity confusion, and frontal theta LRTC showed positive relationships with identity synthesis. These results suggest that more temporal consistency (reversely, less random noise) in intrinsic brain activity is associated with less confused and better-synthesized identity. Our data provide further evidence that the LRTC of intrinsic brain activity might serve as a noise suppression mechanism at the psychological level.Kazumi SugimuraYasuhiro IwasaRyota KobayashiTatsuru HondaJunya HashimotoShiho KashiharaJianhong ZhuKazuki YamamotoTsuyoshi KawaharaMayo AnnoRisa NakagawaKai HatanoTakashi NakaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kazumi Sugimura Yasuhiro Iwasa Ryota Kobayashi Tatsuru Honda Junya Hashimoto Shiho Kashihara Jianhong Zhu Kazuki Yamamoto Tsuyoshi Kawahara Mayo Anno Risa Nakagawa Kai Hatano Takashi Nakao Association between long-range temporal correlations in intrinsic EEG activity and subjective sense of identity
description	Abstract The long-range temporal correlation (LRTC) in resting-state intrinsic brain activity is known to be associated with temporal behavioral patterns, including decision making based on internal criteria such as self-knowledge. However, the association between the neuronal LRTC and the subjective sense of identity remains to be explored; in other words, whether our subjective sense of consistent self across time relates to the temporal consistency of neural activity. The present study examined the relationship between the LRTC of resting-state scalp electroencephalography (EEG) and a subjective sense of identity measured by the Erikson Psychosocial Stage Inventory (EPSI). Consistent with our prediction based on previous studies of neuronal-behavioral relationships, the frontocentral alpha LRTC correlated negatively with identity confusion. Moreover, from the descriptive analyses, centroparietal beta LRTC showed negative correlations with identity confusion, and frontal theta LRTC showed positive relationships with identity synthesis. These results suggest that more temporal consistency (reversely, less random noise) in intrinsic brain activity is associated with less confused and better-synthesized identity. Our data provide further evidence that the LRTC of intrinsic brain activity might serve as a noise suppression mechanism at the psychological level.
format	article
author	Kazumi Sugimura Yasuhiro Iwasa Ryota Kobayashi Tatsuru Honda Junya Hashimoto Shiho Kashihara Jianhong Zhu Kazuki Yamamoto Tsuyoshi Kawahara Mayo Anno Risa Nakagawa Kai Hatano Takashi Nakao
author_facet	Kazumi Sugimura Yasuhiro Iwasa Ryota Kobayashi Tatsuru Honda Junya Hashimoto Shiho Kashihara Jianhong Zhu Kazuki Yamamoto Tsuyoshi Kawahara Mayo Anno Risa Nakagawa Kai Hatano Takashi Nakao
author_sort	Kazumi Sugimura
title	Association between long-range temporal correlations in intrinsic EEG activity and subjective sense of identity
title_short	Association between long-range temporal correlations in intrinsic EEG activity and subjective sense of identity
title_full	Association between long-range temporal correlations in intrinsic EEG activity and subjective sense of identity
title_fullStr	Association between long-range temporal correlations in intrinsic EEG activity and subjective sense of identity
title_full_unstemmed	Association between long-range temporal correlations in intrinsic EEG activity and subjective sense of identity
title_sort	association between long-range temporal correlations in intrinsic eeg activity and subjective sense of identity
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/fa21ac4acb0a4f33b31ea67dbdaa825b
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Association between long-range temporal correlations in intrinsic EEG activity and subjective sense of identity

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