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  Distinct modes of functional connectivity induced by movie-watching

Demirtas, M., Ponce-Alvarez, A., Gilson, M., Hagmann, P., Mantini, D., Betti, V., et al. (2019). Distinct modes of functional connectivity induced by movie-watching. NeuroImage, 184, 335-348. doi:10.1016/j.neuroimage.2018.09.042.

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Datensatz-Permalink: http://hdl.handle.net/21.11116/0000-0002-4F28-A Versions-Permalink: http://hdl.handle.net/21.11116/0000-0002-85E5-5
Genre: Zeitschriftenartikel

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 Urheber:
Demirtas, Murat1, Autor
Ponce-Alvarez, Adrian1, Autor
Gilson, Matthieu1, Autor
Hagmann, Patric1, Autor
Mantini, Dante1, Autor
Betti, Viviana 1, Autor
Romani, Gian Luca1, Autor
Friston, Karl1, Autor
Corbetta, Maurizio1, Autor
Deco, Gustavo2, Autor              
Affiliations:
1External Organizations, ou_persistent22              
2Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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 Zusammenfassung: A fundamental question in systems neuroscience is how endogenous neuronal activity self-organizes during particular brain states. Recent neuroimaging studies have demonstrated systematic relationships between resting-state and task-induced functional connectivity (FC). In particular, continuous task studies, such as movie watching, speak to alterations in coupling among cortical regions and enhanced fluctuations in FC compared to the resting-state. This suggests that FC may reflect systematic and large-scale reorganization of functionally integrated responses while subjects are watching movies. In this study, we characterized fluctuations in FC during resting-state and movie-watching conditions. We found that the FC patterns induced systematically by movie-watching can be explained with a single principal component. These condition-specific FC fluctuations overlapped with inter-subject synchronization patterns in occipital and temporal brain regions. However, unlike inter-subject synchronization, condition-specific FC patterns were characterized by increased correlations within frontal brain regions and reduced correlations between frontal-parietal brain regions. We investigated these condition-specific functional variations as a shorter time scale, using time-resolved FC. The time-resolved FC showed condition-specificity over time; notably when subjects watched both the same and different movies. To explain self-organisation of global FC through the alterations in local dynamics, we used a large-scale computational model. We found that condition-specific reorganization of FC could be explained by local changes that engendered changes in FC among higher-order association regions, mainly in frontal and parietal cortices.

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Sprache(n): eng - Englisch
 Datum: 2018-09-012018-06-142018-09-162018-09-172019-01-01
 Publikationsstatus: Im Druck publiziert
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.neuroimage.2018.09.042
 Art des Abschluß: -

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Projektinformation

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Projektname : Human Brain Project Specific Grant Agreement 2
Grant ID : 785907
Förderprogramm : Horizon 2020
Förderorganisation : EU
Projektname : AEI/FEDER
Grant ID : PSI2016-75688-P
Förderprogramm : -
Förderorganisation : -

Quelle 1

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Titel: NeuroImage
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Orlando, FL : Academic Press
Seiten: - Band / Heft: 184 Artikelnummer: - Start- / Endseite: 335 - 348 Identifikator: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166