Neonatal cortical activity organizes into transient network states that are affected by vigilance states and brain injury

Early neurodevelopment is critically dependent on the structure and dynamics of spontaneous neuronal activity; however, the natural organization of newborn cortical networks is poorly understood. Recent adult studies suggest that spontaneous cortical activity exhibits discrete network states with ph...

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Main Authors: Mohammad Khazaei, Khadijeh Raeisi, Sampsa Vanhatalo, Filippo Zappasodi, Silvia Comani, Anton Tokariev
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:NeuroImage
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1053811923004937
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author Mohammad Khazaei
Khadijeh Raeisi
Sampsa Vanhatalo
Filippo Zappasodi
Silvia Comani
Anton Tokariev
author_facet Mohammad Khazaei
Khadijeh Raeisi
Sampsa Vanhatalo
Filippo Zappasodi
Silvia Comani
Anton Tokariev
author_sort Mohammad Khazaei
collection DOAJ
description Early neurodevelopment is critically dependent on the structure and dynamics of spontaneous neuronal activity; however, the natural organization of newborn cortical networks is poorly understood. Recent adult studies suggest that spontaneous cortical activity exhibits discrete network states with physiological correlates. Here, we studied newborn cortical activity during sleep using hidden Markov modeling to determine the presence of such discrete neonatal cortical states (NCS) in 107 newborn infants, with 47 of them presenting with a perinatal brain injury. Our results show that neonatal cortical activity organizes into four discrete NCSs that are present in both cardinal sleep states of a newborn infant, active and quiet sleep, respectively. These NCSs exhibit state-specific spectral and functional network characteristics. The sleep states exhibit different NCS dynamics, with quiet sleep presenting higher fronto-temporal activity and a stronger brain-wide neuronal coupling. Brain injury was associated with prolonged lifetimes of the transient NCSs, suggesting lowered dynamics, or flexibility, in the cortical networks. Taken together, the findings suggest that spontaneously occurring transient network states are already present at birth, with significant physiological and pathological correlates; this NCS analysis framework can be fully automatized, and it holds promise for offering an objective, global level measure of early brain function for benchmarking neurodevelopmental or clinical research.
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spelling doaj.art-3ccd5d1104e64db4ad24eb79ece798b72023-09-02T04:31:20ZengElsevierNeuroImage1095-95722023-10-01279120342Neonatal cortical activity organizes into transient network states that are affected by vigilance states and brain injuryMohammad Khazaei0Khadijeh Raeisi1Sampsa Vanhatalo2Filippo Zappasodi3Silvia Comani4Anton Tokariev5Department of Neurosciences, Imaging and Clinical Sciences, University “Gabriele d'Annunzio” of Chieti–Pescara, ITAB building, 3rd floor, room 314, Chieti, Via dei Vestini, Italy; Corresponding author.Department of Neurosciences, Imaging and Clinical Sciences, University “Gabriele d'Annunzio” of Chieti–Pescara, ITAB building, 3rd floor, room 314, Chieti, Via dei Vestini, ItalyBABA center, Pediatric Research Center, Departments of Clinical Neurophysiology and Physiology, Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, FinlandDepartment of Neurosciences, Imaging and Clinical Sciences, University “Gabriele d'Annunzio” of Chieti–Pescara, ITAB building, 3rd floor, room 314, Chieti, Via dei Vestini, Italy; Institute for Advanced Biomedical Technologies, University “Gabriele d'Annunzio” of Chieti–Pescara, Chieti, ItalyDepartment of Neurosciences, Imaging and Clinical Sciences, University “Gabriele d'Annunzio” of Chieti–Pescara, ITAB building, 3rd floor, room 314, Chieti, Via dei Vestini, Italy; Behavioral Imaging and Neural Dynamics Center, University “Gabriele d'Annunzio” of Chieti–Pescara, Chieti, ItalyBABA center, Pediatric Research Center, Departments of Clinical Neurophysiology and Physiology, Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, FinlandEarly neurodevelopment is critically dependent on the structure and dynamics of spontaneous neuronal activity; however, the natural organization of newborn cortical networks is poorly understood. Recent adult studies suggest that spontaneous cortical activity exhibits discrete network states with physiological correlates. Here, we studied newborn cortical activity during sleep using hidden Markov modeling to determine the presence of such discrete neonatal cortical states (NCS) in 107 newborn infants, with 47 of them presenting with a perinatal brain injury. Our results show that neonatal cortical activity organizes into four discrete NCSs that are present in both cardinal sleep states of a newborn infant, active and quiet sleep, respectively. These NCSs exhibit state-specific spectral and functional network characteristics. The sleep states exhibit different NCS dynamics, with quiet sleep presenting higher fronto-temporal activity and a stronger brain-wide neuronal coupling. Brain injury was associated with prolonged lifetimes of the transient NCSs, suggesting lowered dynamics, or flexibility, in the cortical networks. Taken together, the findings suggest that spontaneously occurring transient network states are already present at birth, with significant physiological and pathological correlates; this NCS analysis framework can be fully automatized, and it holds promise for offering an objective, global level measure of early brain function for benchmarking neurodevelopmental or clinical research.http://www.sciencedirect.com/science/article/pii/S1053811923004937Neonatal EEGSleepBrain dynamicsFunctional networksHypoxic-ischemic encephalopathy
spellingShingle Mohammad Khazaei
Khadijeh Raeisi
Sampsa Vanhatalo
Filippo Zappasodi
Silvia Comani
Anton Tokariev
Neonatal cortical activity organizes into transient network states that are affected by vigilance states and brain injury
NeuroImage
Neonatal EEG
Sleep
Brain dynamics
Functional networks
Hypoxic-ischemic encephalopathy
title Neonatal cortical activity organizes into transient network states that are affected by vigilance states and brain injury
title_full Neonatal cortical activity organizes into transient network states that are affected by vigilance states and brain injury
title_fullStr Neonatal cortical activity organizes into transient network states that are affected by vigilance states and brain injury
title_full_unstemmed Neonatal cortical activity organizes into transient network states that are affected by vigilance states and brain injury
title_short Neonatal cortical activity organizes into transient network states that are affected by vigilance states and brain injury
title_sort neonatal cortical activity organizes into transient network states that are affected by vigilance states and brain injury
topic Neonatal EEG
Sleep
Brain dynamics
Functional networks
Hypoxic-ischemic encephalopathy
url http://www.sciencedirect.com/science/article/pii/S1053811923004937
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AT khadijehraeisi neonatalcorticalactivityorganizesintotransientnetworkstatesthatareaffectedbyvigilancestatesandbraininjury
AT sampsavanhatalo neonatalcorticalactivityorganizesintotransientnetworkstatesthatareaffectedbyvigilancestatesandbraininjury
AT filippozappasodi neonatalcorticalactivityorganizesintotransientnetworkstatesthatareaffectedbyvigilancestatesandbraininjury
AT silviacomani neonatalcorticalactivityorganizesintotransientnetworkstatesthatareaffectedbyvigilancestatesandbraininjury
AT antontokariev neonatalcorticalactivityorganizesintotransientnetworkstatesthatareaffectedbyvigilancestatesandbraininjury