Dynamics of the human brain network revealed by time-frequency effective connectivity in fNIRS

  • Functional near infrared spectroscopy (fNIRS) is a promising neuroimaging method for investigating networks of cortical regions over time. We propose a directed effective connectivity method (TPDC) allowing the capture of both time and frequency evolution of the brain’s networks using fNIRS data acquired from healthy subjects performing a continuous finger-tapping task. Using this method we show the directed connectivity patterns among cortical motor regions involved in the task and their significant variations in the strength of information flow exchanges. Intra and inter-hemispheric connections during the motor task with their temporal evolution are also provided. Characterisation of the fluctuations in brain connectivity opens up a new way to assess the organisation of the brain to adapt to changing task constraints, or under pathological conditions.

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Metadaten
Author:Grégoire Vergotte, Kjerstin Torre, Venkata Chaitanya Chirumamilla, Abdul Rauf Anwar, Sergiu Groppa, Stéphane Perrey, Muthuraman MuthuramanORCiDGND
URN:urn:nbn:de:bvb:384-opus4-1102246
Frontdoor URLhttps://opus.bibliothek.uni-augsburg.de/opus4/110224
ISSN:2156-7085OPAC
Parent Title (English):Biomedical Optics Express
Publisher:The Optical Society
Place of publication:Washington, DC
Type:Article
Language:English
Year of first Publication:2017
Publishing Institution:Universität Augsburg
Release Date:2023/12/15
Tag:Atomic and Molecular Physics, and Optics; Biotechnology
Volume:8
Issue:11
First Page:5326
Last Page:5341
DOI:https://doi.org/10.1364/boe.8.005326
Institutes:Fakultät für Angewandte Informatik
Fakultät für Angewandte Informatik / Institut für Informatik
Fakultät für Angewandte Informatik / Institut für Informatik / Professur für Informatik in der Medizintechnik
Dewey Decimal Classification:0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
Licence (German):Sonstige Open-Access-Lizenz

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