Directed physiological networks in the human prefrontal cortex at rest and post transcranial photobiomodulation.
Humans
Prefrontal Cortex
/ physiology
Male
Adult
Female
Electroencephalography
Spectroscopy, Near-Infrared
/ methods
Low-Level Light Therapy
/ methods
Young Adult
Rest
/ physiology
Oxyhemoglobins
/ metabolism
Electron Transport Complex IV
/ metabolism
Hemodynamics
/ physiology
Nerve Net
/ physiology
Generalized partial directed coherence
Infra-slow oscillation
Neurometabolic coupling
Neurovascular coupling
Transcranial photobiomodulation
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
03 May 2024
03 May 2024
Historique:
received:
28
09
2023
accepted:
16
04
2024
medline:
4
5
2024
pubmed:
4
5
2024
entrez:
3
5
2024
Statut:
epublish
Résumé
Cerebral infra-slow oscillation (ISO) is a source of vasomotion in endogenic (E; 0.005-0.02 Hz), neurogenic (N; 0.02-0.04 Hz), and myogenic (M; 0.04-0.2 Hz) frequency bands. In this study, we quantified changes in prefrontal concentrations of oxygenated hemoglobin (Δ[HbO]) and redox-state cytochrome c oxidase (Δ[CCO]) as hemodynamic and metabolic activity metrics, and electroencephalogram (EEG) powers as electrophysiological activity, using concurrent measurements of 2-channel broadband near-infrared spectroscopy and EEG on the forehead of 22 healthy participants at rest. After preprocessing, the multi-modality signals were analyzed using generalized partial directed coherence to construct unilateral neurophysiological networks among the three neurophysiological metrics (with simplified symbols of HbO, CCO, and EEG) in each E/N/M frequency band. The links in these networks represent neurovascular, neurometabolic, and metabolicvascular coupling (NVC, NMC, and MVC). The results illustrate that the demand for oxygen by neuronal activity and metabolism (EEG and CCO) drives the hemodynamic supply (HbO) in all E/N/M bands in the resting prefrontal cortex. Furthermore, to investigate the effect of transcranial photobiomodulation (tPBM), we performed a sham-controlled study by delivering an 800-nm laser beam to the left and right prefrontal cortex of the same participants. After performing the same data processing and statistical analysis, we obtained novel and important findings: tPBM delivered on either side of the prefrontal cortex triggered the alteration or reversal of directed network couplings among the three neurophysiological entities (i.e., HbO, CCO, and EEG frequency-specific powers) in the physiological network in the E and N bands, demonstrating that during the post-tPBM period, both metabolism and hemodynamic supply drive electrophysiological activity in directed network coupling of the prefrontal cortex (PFC). Overall, this study revealed that tPBM facilitates significant modulation of the directionality of neurophysiological networks in electrophysiological, metabolic, and hemodynamic activities.
Identifiants
pubmed: 38702415
doi: 10.1038/s41598-024-59879-7
pii: 10.1038/s41598-024-59879-7
doi:
Substances chimiques
Oxyhemoglobins
0
Electron Transport Complex IV
EC 1.9.3.1
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
10242Subventions
Organisme : NIH HHS
ID : R21AG079309
Pays : United States
Informations de copyright
© 2024. The Author(s).
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