Cited by 253Functional Brain Connectivity StudiesTopological and Geometric Data AnalysisNeural dynamics and brain function

Towards a new approach to reveal dynamical organization of the brain using topological data analysis

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Saggar, Manish, Sporns, Olaf, Gonzalez-Castillo, Javier, Bandettini, Peter A., Carlsson, Gunnar, Glover, Gary, Reiss, Allan L.·2018·Nature Communications

Abstract

Little is known about how our brains dynamically adapt for efficient functioning. Most previous work has focused on analyzing changes in co-fluctuations between a set of brain regions over several temporal segments of the data. We argue that by collapsing data in space or time, we stand to lose useful information about the brain’s dynamical organization. Here we use Topological Data Analysis to reveal the overall organization of whole-brain activity maps at a single-participant level—as an interactive representation—without arbitrarily collapsing data in space or time. Using existing multitask fMRI datasets, with the known ground truth about the timing of transitions from one task-block to next, our approach tracks both within- and between-task transitions at a much faster time scale (~4–9 s) than before. The individual differences in the revealed dynamical organization predict task performance. In summary, our approach distills complex brain dynamics into interactive and behaviorally relevant representations.

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Authors
Saggar, M., Sporns, O., Gonzalez-Castillo, J., Bandettini, P. A., Carlsson, G., Glover, G., & Reiss, A. L.
Affiliations
  • Stanford Medicine (US)
  • Indiana University Bloomington (US)
  • National Institutes of Health (US)
  • Ayasdi (United States) (US)
  • Stanford University (US)
Corresponding author
Saggar, Manish
Venue
Nature Communications
Published
2018-04-11
Volume
9
Issue
1
Pages
1399-1399
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2797507693
Cited by
253
References
69
Citations by year
2026: 29 · 2025: 32 · 2024: 19 · 2023: 40 · 2022: 24 · 2021: 40 · 2020: 27 · 2019: 32 · 2018: 10
FWCI
16.23
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • IUScholarWorks Open (Indiana University) (submittedVersion)
Funders
  • National Alliance for Research on Schizophrenia and Depression
  • National Institutes of Health (93-M-0170, NCT00001360, 5u54mh091657-05, 1U54‐MH‐091657)
  • McDonnell Center for Systems Neuroscience (ZIAMH002783, 1U54MH091657)
  • National Institute of Mental Health (K99MH104605, 1U54 MH091657, U54-MH091657, 93- M-0170, NCT00001360, R00MH104605, ZIAMH002783)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Topological and Geometric Data Analysis
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
brain dynamics, topological data analysis, task transitions, interactive visualization, individual differences, task performance prediction
MeSH terms
Adult, Brain, Female, Humans, Magnetic Resonance Imaging, Male, Memory, Short-Term, Nerve Net, Rest, Task Performance and Analysis, Connectome, Datasets as Topic

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