Reorganization of Temporal Brain Network Underpins Accumulative Nature of Mental Fatigue

Lingyun Gao, Anastasios Bezerianos, Nitish Thakor, Jinsong Li, Yu Sun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mental fatigue is a serious problem in contemporary society, which affects personal productivity, safety in life and mental health, and it has become a convergent research topic in the nascent field of neuro-ergonomics. However, we still lack a clear understanding of the neural mechanism of mental fatigue, which contradicts the realistic demands. In this study, considering the dynamic accumulation of mental fatigue, temporal brain networks were estimated from 20 participants based on functional images. First, the dynamic connection network was constructed through functional imaging data in a sustained visual attention task of 32.6 minutes. Quantitative analysis of the dynamic functional connectivity (FC) was then performed in the 3D spatiotemporal architecture using our recently introduced temporal efficiency method. We found that the temporal global efficiency was decreased with the increase of mental fatigue, suggesting a significantly disintegrated spatiotemporal topology of dynamic FC underpinning mental fatigue. The finding therefore expands the research of related static brain networks and provides new evidence for the resource hypothesis of mental fatigue.

Original languageEnglish (US)
Title of host publication9th International IEEE EMBS Conference on Neural Engineering, NER 2019
PublisherIEEE Computer Society
Pages494-497
Number of pages4
ISBN (Electronic)9781538679210
DOIs
StatePublished - May 16 2019
Externally publishedYes
Event9th International IEEE EMBS Conference on Neural Engineering, NER 2019 - San Francisco, United States
Duration: Mar 20 2019Mar 23 2019

Publication series

NameInternational IEEE/EMBS Conference on Neural Engineering, NER
Volume2019-March
ISSN (Print)1948-3546
ISSN (Electronic)1948-3554

Conference

Conference9th International IEEE EMBS Conference on Neural Engineering, NER 2019
CountryUnited States
CitySan Francisco
Period3/20/193/23/19

ASJC Scopus subject areas

  • Artificial Intelligence
  • Mechanical Engineering

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  • Cite this

    Gao, L., Bezerianos, A., Thakor, N., Li, J., & Sun, Y. (2019). Reorganization of Temporal Brain Network Underpins Accumulative Nature of Mental Fatigue. In 9th International IEEE EMBS Conference on Neural Engineering, NER 2019 (pp. 494-497). [8717145] (International IEEE/EMBS Conference on Neural Engineering, NER; Vol. 2019-March). IEEE Computer Society. https://doi.org/10.1109/NER.2019.8717145