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Consistency and dynamical changes of directional information flow in different brain states: A comparison of working memory and resting-state using EEG.
Neuroimage 2019; 203:116188N

Abstract

Several recent studies have reported a frequency-dependent directional information flow loop in resting-state networks by phase transfer entropy, comprising an anterior-to-posterior information flow in the theta band and a posterior-to-anterior information flow in the alpha band. However, the functional roles of this information flow loop remain unclear. In the current study, we compared information flow patterns in four different brain states using electroencephalography: resting-state, fixation, working memory (WM) encoding and WM maintenance. An auditory (pure tones) WM span task was carried out. A consistent anterior-to-posterior information flow in the theta band and an opposite pattern in the alpha band were found in all four segments. Flows in both patterns were enhanced during WM encoding. In contrast, a prefrontal-to-central information flow in the alpha band was dominant during the resting-state. In addition, enhanced information flows from right temporal to other brain regions in the theta band were found during WM processing (WM encoding and maintenance). Comparison of the consistency and dynamical changes of information flows in these four brain states indicated their functional roles in central executive processes, internal attention, WM information maintenance, and the right-hemisphere advantage in pure tone processing.

Authors+Show Affiliations

Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, Japan. Electronic address: wang.ruimin.725@s.kyushu-u.ac.jp.Key Laboratory of Child Development and Learning Science of Ministry of Education, Research Center for Learning Science, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.Faculty of Design, Department of Human Science, Kyushu University, 4-9-1 Shiobaru Minami-ku, Fukuoka, Japan.Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, Japan.Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, Japan.Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, Japan; Informatics Faculty of Information Science and Electrical Engineering, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31533066

Citation

Wang, Ruimin, et al. "Consistency and Dynamical Changes of Directional Information Flow in Different Brain States: a Comparison of Working Memory and Resting-state Using EEG." NeuroImage, vol. 203, 2019, p. 116188.
Wang R, Ge S, Zommara NM, et al. Consistency and dynamical changes of directional information flow in different brain states: A comparison of working memory and resting-state using EEG. Neuroimage. 2019;203:116188.
Wang, R., Ge, S., Zommara, N. M., Ravienna, K., Espinoza, T., & Iramina, K. (2019). Consistency and dynamical changes of directional information flow in different brain states: A comparison of working memory and resting-state using EEG. NeuroImage, 203, p. 116188. doi:10.1016/j.neuroimage.2019.116188.
Wang R, et al. Consistency and Dynamical Changes of Directional Information Flow in Different Brain States: a Comparison of Working Memory and Resting-state Using EEG. Neuroimage. 2019 Sep 15;203:116188. PubMed PMID: 31533066.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Consistency and dynamical changes of directional information flow in different brain states: A comparison of working memory and resting-state using EEG. AU - Wang,Ruimin, AU - Ge,Sheng, AU - Zommara,Noha Mohsen, AU - Ravienna,Karine, AU - Espinoza,Teodora, AU - Iramina,Keiji, Y1 - 2019/09/15/ PY - 2019/03/15/received PY - 2019/08/06/revised PY - 2019/09/11/accepted PY - 2019/9/19/pubmed PY - 2019/9/19/medline PY - 2019/9/19/entrez KW - Alpha oscillations KW - Information flow KW - Phase transfer entropy KW - Resting-state KW - Theta oscillations KW - Working memory SP - 116188 EP - 116188 JF - NeuroImage JO - Neuroimage VL - 203 N2 - Several recent studies have reported a frequency-dependent directional information flow loop in resting-state networks by phase transfer entropy, comprising an anterior-to-posterior information flow in the theta band and a posterior-to-anterior information flow in the alpha band. However, the functional roles of this information flow loop remain unclear. In the current study, we compared information flow patterns in four different brain states using electroencephalography: resting-state, fixation, working memory (WM) encoding and WM maintenance. An auditory (pure tones) WM span task was carried out. A consistent anterior-to-posterior information flow in the theta band and an opposite pattern in the alpha band were found in all four segments. Flows in both patterns were enhanced during WM encoding. In contrast, a prefrontal-to-central information flow in the alpha band was dominant during the resting-state. In addition, enhanced information flows from right temporal to other brain regions in the theta band were found during WM processing (WM encoding and maintenance). Comparison of the consistency and dynamical changes of information flows in these four brain states indicated their functional roles in central executive processes, internal attention, WM information maintenance, and the right-hemisphere advantage in pure tone processing. SN - 1095-9572 UR - https://www.unboundmedicine.com/medline/citation/31533066/Consistency_and_dynamical_changes_of_directional_information_flow_in_different_brain_states:_A_comparison_of_working_memory_and_resting-state_using_EEG L2 - https://linkinghub.elsevier.com/retrieve/pii/S1053-8119(19)30779-7 DB - PRIME DP - Unbound Medicine ER -