Altered Regional Brain Communities during High Order Cognitive Processes: Relation to Vigilance Decrement

Nida Itrat Abbasi, Rohit Bose, Yaswanth Kumar, Indu P. Bodala, Anastasios Bezerianos, Nitish V Thakor, Andrei Dragomir

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

Abstract

Understanding modular organization between brain regions can provide deeper insight into the complex neural mechanisms associated with processes like vigilance decrement. Distinct but interacting modules in brain connectivity networks have been known to support integration of specific mechanisms relevant in high-order cognitive processes. To investigate the neuronal mechanisms associated with vigilance decrement, we conducted an experiment where the participants performed a driving task. EEG graph metrics within communities, like clustering coefficient (Cintra), efficiency (Eintra), density (Dintra), and between communities, like intermodule density (Dinter), were computed from the source-localized surface brain signals. Further, we also calculated the nodal out degree to investigate the difference in information flow in the brain during vigilance decrement. Increase in the intermodule density, Dinter, was observed from the left fronto-parietal cluster to the right temporo-parietal cluster. Moreover, significant reduction in the intramodule metrics, Eintra and Cintra was observed in the right temporo- parietal cluster. Thus, our findings signify a flexible topographical architecture to compensate the hub disruption effect caused due to decline in vigilance.

Original languageEnglish (US)
Title of host publication9th International IEEE EMBS Conference on Neural Engineering, NER 2019
PublisherIEEE Computer Society
Pages631-634
Number of pages4
ISBN (Electronic)9781538679210
DOIs
Publication statusPublished - 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

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ASJC Scopus subject areas

  • Artificial Intelligence
  • Mechanical Engineering

Cite this

Abbasi, N. I., Bose, R., Kumar, Y., Bodala, I. P., Bezerianos, A., Thakor, N. V., & Dragomir, A. (2019). Altered Regional Brain Communities during High Order Cognitive Processes: Relation to Vigilance Decrement. In 9th International IEEE EMBS Conference on Neural Engineering, NER 2019 (pp. 631-634). [8717003] (International IEEE/EMBS Conference on Neural Engineering, NER; Vol. 2019-March). IEEE Computer Society. https://doi.org/10.1109/NER.2019.8717003