Cited by 219Functional Brain Connectivity StudiesAdvanced Neuroimaging Techniques and ApplicationsComplex Network Analysis Techniques

Wiring cost and topological participation of the mouse brain connectome

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Rubinov, Mikail, Ypma, Rolf J. F., Watson, Charles, Bullmore, Edward T.·2015·Proceedings of the National Academy of Sciences

Abstract

Brain connectomes are topologically complex systems, anatomically embedded in 3D space. Anatomical conservation of "wiring cost" explains many but not all aspects of these networks. Here, we examined the relationship between topology and wiring cost in the mouse connectome by using data from 461 systematically acquired anterograde-tracer injections into the right cortical and subcortical regions of the mouse brain. We estimated brain-wide weights, distances, and wiring costs of axonal projections and performed a multiscale topological and spatial analysis of the resulting weighted and directed mouse brain connectome. Our analysis showed that the mouse connectome has small-world properties, a hierarchical modular structure, and greater-than-minimal wiring costs. High-participation hubs of this connectome mediated communication between functionally specialized and anatomically localized modules, had especially high wiring costs, and closely corresponded to regions of the default mode network. Analyses of independently acquired histological and gene-expression data showed that nodal participation colocalized with low neuronal density and high expression of genes enriched for cognition, learning and memory, and behavior. The mouse connectome contains high-participation hubs, which are not explained by wiring-cost minimization but instead reflect competitive selection pressures for integrated network topology as a basis for higher cognitive and behavioral functions.

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Crossref · 10.1073/pnas.1420315112

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Authors
Rubinov, M., Ypma, R. J. F., Watson, C., & Bullmore, E. T.
Affiliations
  • University of Cambridge (GB)
  • Curtin University (AU)
  • GlaxoSmithKline (United Kingdom) (GB)
Venue
Proceedings of the National Academy of Sciences
Published
2015-07-27
Volume
112
Issue
32
Pages
10032-10037
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1900134997
Cited by
219
References
56
Citations by year
2026: 7 · 2025: 20 · 2024: 23 · 2023: 17 · 2022: 19 · 2021: 19 · 2020: 22 · 2019: 24 · 2018: 25 · 2017: 15 · 2016: 25 · 2015: 3
FWCI
13.64
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Apollo (University of Cambridge) (acceptedVersion, cc-by-nc)
  • eSpace (Curtin University) (submittedVersion)
Funders
  • Wellcome Trust (095844/Z/11/Z, 095844, 093875)
  • National Institute for Health and Care Research (NF-SI-0513-10051)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Complex Network Analysis Techniques
Keywords
brain connectome, wiring cost, mouse brain, network topology, small-world networks, modular networks, network hubs, default mode network, axonal projections, anterograde tracing, neuronal density, gene expression, cognitive function, network integration
MeSH terms
Animals, Nerve Net, Gene Expression Profiling, Mice, Connectome

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