Cited by 129Functional Brain Connectivity StudiesTraumatic Brain Injury ResearchAdvanced Neuroimaging Techniques and Applications

Graph analysis of functional brain networks for cognitive control of action in traumatic brain injury

Open access
Caeyenberghs, Karen, Leemans, Alexander, Heitger, Marcus H., Leunissen, Inge, Dhollander, Thijs, Sunaert, Stefan, Dupont, Patrick, Swinnen, Stephan P.·2012·Brain

Abstract

Patients with traumatic brain injury show clear impairments in behavioural flexibility and inhibition that often persist beyond the time of injury, affecting independent living and psychosocial functioning. Functional magnetic resonance imaging studies have shown that patients with traumatic brain injury typically show increased and more broadly dispersed frontal and parietal activity during performance of cognitive control tasks. We constructed binary and weighted functional networks and calculated their topological properties using a graph theoretical approach. Twenty-three adults with traumatic brain injury and 26 age-matched controls were instructed to switch between coordination modes while making spatially and temporally coupled circular motions with joysticks during event-related functional magnetic resonance imaging. Results demonstrated that switching performance was significantly lower in patients with traumatic brain injury compared with control subjects. Furthermore, although brain networks of both groups exhibited economical small-world topology, altered functional connectivity was demonstrated in patients with traumatic brain injury. In particular, compared with controls, patients with traumatic brain injury showed increased connectivity degree and strength, and higher values of local efficiency, suggesting adaptive mechanisms in this group. Finally, the degree of increased connectivity was significantly correlated with poorer switching task performance and more severe brain injury. We conclude that analysing the functional brain network connectivity provides new insights into understanding cognitive control changes following brain injury.

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Crossref · 10.1093/brain/aws048

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Authors
Caeyenberghs, K., Leemans, A., Heitger, M. H., Leunissen, I., Dhollander, T., Sunaert, S., Dupont, P., & Swinnen, S. P.
Affiliations
  • KU Leuven (BE)
  • University Medical Center Utrecht (NL)
Venue
Brain
Published
2012-03-16
Volume
135
Issue
4
Pages
1293-1307
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2148459191
Cited by
129
References
99
Citations by year
2026: 4 · 2025: 4 · 2024: 9 · 2023: 8 · 2022: 6 · 2021: 8 · 2020: 12 · 2019: 6 · 2018: 4 · 2017: 15 · 2016: 14 · 2015: 13 · 2014: 12 · 2013: 11 · 2012: 3
FWCI
6.37
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
  • Research Bank (Australian Catholic University) (submittedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
  • Research Publications (Maastricht University) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
Keywords
traumatic brain injury, cognitive control, functional brain networks, graph theory, small-world networks, functional connectivity, behavioral flexibility, inhibition, task switching, local efficiency, injury severity
MeSH terms
Adolescent, Adult, Attention, Brain, Brain Injuries, Brain Mapping, Cognition Disorders, Computer Graphics, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Neural Pathways, Neuropsychological Tests, Oxygen, Photic Stimulation, Psychomotor Performance, Trauma Severity Indices, Young Adult

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