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  Functional parcellation using time courses of instantaneous connectivity

van Oort, E. S., Mennes, M., Navarro Schröder, T., Kumar, V. J., Zaragoza Jimenez, N. I., Grodd, W., et al. (2018). Functional parcellation using time courses of instantaneous connectivity. NeuroImage, 170, 31-40. doi:10.1016/j.neuroimage.2017.07.027.

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 Urheber:
van Oort, Erik S.B.1, Autor
Mennes, Maarten1, Autor
Navarro Schröder, Tobias 1, Autor
Kumar, Vinod J.1, Autor
Zaragoza Jimenez, Nestor Israel1, 2, Autor           
Grodd, Wolfgang1, Autor
Doeller, Christian F.1, Autor           
Beckmann, Christian F.1, Autor
Affiliations:
1External Organizations, ou_persistent22              
2Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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Schlagwörter: Parcellation; Resting state; FMRI; Motor cortex; Thalamus; Subcortex; Entorhinal cortex
 Zusammenfassung: Functional neuroimaging studies have led to understanding the brain as a collection of spatially segregated functional networks. It is thought that each of these networks is in turn composed of a set of distinct sub-regions that together support each network's function. Considering the sub-regions to be an essential part of the brain's functional architecture, several strategies have been put forward that aim at identifying the functional sub-units of the brain by means of functional parcellations. Current parcellation strategies typically employ a bottom-up strategy, creating a parcellation by clustering smaller units. We propose a novel top-down parcellation strategy, using time courses of instantaneous connectivity to subdivide an initial region of interest into sub-regions. We use split-half reproducibility to choose the optimal number of sub-regions.

We apply our Instantaneous Connectivity Parcellation (ICP) strategy on high-quality resting-state FMRI data, and demonstrate the ability to generate parcellations for thalamus, entorhinal cortex, motor cortex, and subcortex including brainstem and striatum. We evaluate the subdivisions against available cytoarchitecture maps to show that our parcellation strategy recovers biologically valid subdivisions that adhere to known cytoarchitectural features.

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Sprache(n): eng - English
 Datum: 2017-07-122016-11-122017-07-132017-07-142018-04-15
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.neuroimage.2017.07.027
PMID: 28716715
Anderer: Epub 2017
 Art des Abschluß: -

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Projektname : -
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Förderorganisation : NIH Blueprint for Neuroscience Research
Projektname : -
Grant ID : -
Förderprogramm : -
Förderorganisation : McDonnell Center for Systems Neuroscience at Washington University
Projektname : -
Grant ID : 098369/Z/12/Z
Förderprogramm : Wellcome Trust UK Strategic Award
Förderorganisation : Wellcome Trust
Projektname : -
Grant ID : 864-12-003
Förderprogramm : Vidi-Grant
Förderorganisation : Netherlands Organisation for Scientific Research (NWO)
Projektname : Multi-Modal Functional Fingerprint of the Human Brain. Application in ADHD / BRAIN FINGERPRINT
Grant ID : 327340
Förderprogramm : Funding Programme 7
Förderorganisation : European Commission (EC)

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Titel: NeuroImage
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Orlando, FL : Academic Press
Seiten: - Band / Heft: 170 Artikelnummer: - Start- / Endseite: 31 - 40 Identifikator: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166