Prediction of cognitive outcome after mild traumatic brain injury from acute measures of communication within brain networks

Journal article

Imms, Phoebe, Chowdhury, Nahian F., Chaudhari, Nikhil N., Amgalan, Anar, Poudel, Govinda, Caeyenberghs, Karen and Irimia, Andrei. (2024). Prediction of cognitive outcome after mild traumatic brain injury from acute measures of communication within brain networks. Cortex. 171, pp. 397-412. https://doi.org/10.1016/j.cortex.2023.10.022

Publication dates
Authors	Imms, Phoebe, Chowdhury, Nahian F., Chaudhari, Nikhil N., Amgalan, Anar, Poudel, Govinda, Caeyenberghs, Karen and Irimia, Andrei
Abstract	A considerable but ill-defined proportion of patients with mild traumatic brain injury (mTBI) experience persistent cognitive sequelae; the ability to identify such individuals early can help their neurorehabilitation. Here we tested the hypothesis that acute measures of efficient communication within brain networks are associated with patients’ risk for unfavorable cognitive outcome six months after mTBI. Diffusion and T1-weighted magnetic resonance imaging, alongside cognitive measures, were obtained to map connectomes both one week and six months post injury in 113 adult patients with mTBI (71 males). For task-related brain networks, communication measures (characteristic path length, global efficiency, navigation efficiency) were moderately correlated with changes in cognition. Taking into account the covariance of age and sex, more unfavorable communication within networks were associated with worse outcomes within cognitive domains frequently impacted by mTBI (episodic and working memory, verbal fluency, inductive reasoning, and processing speed). Individuals with more unfavorable outcomes had significantly longer and less efficient pathways within networks supporting verbal fluency (all t > 2.786, p < .006), highlighting the vulnerability of language to mTBI. Participants in whom a task-related network was relatively inefficient one week post injury were up to eight times more likely to have unfavorable cognitive outcome pertaining to that task. Our findings suggest that communication measures within task-related networks identify mTBI patients who are unlikely to develop persistent cognitive deficits after mTBI. Our approach and findings can help to stratify mTBI patients according to their expected need for follow-up and/or neurorehabilitation.
Keywords	brain injury; outcome prediction; executive function; neurocognitive deficit prognosis; structural connectomics
Year	2024
Journal	Cortex
Journal citation	171, pp. 397-412
Publisher	Elsevier Ltd
ISSN	0010-9452
Digital Object Identifier (DOI)	https://doi.org/10.1016/j.cortex.2023.10.022
PubMed ID	38103453
Scopus EID	2-s2.0-85063968329
PubMed Central ID	PMC10922490
Page range	397-412
Funder	National Institutes of Health (NIH), United States of America
	Department of Defense, United States of America
	Hanson-Thorell Research Scholarship Fund
	Undergraduate Research Associate Program (URAP), University of Southern California
	Center for Undergraduate Research in Viterbi Engineering (CURVE), University of Southern California
	National Health and Medical Research Council (NHMRC)
Publisher's version	License All rights reserved File Access Level Controlled
Output status	Published
Online	15 Dec 2023
Publication process dates
Accepted	20 Oct 2023
Deposited	26 May 2025
Grant ID	R01 NS 100973
	RF1 AG 082201
	R01 AG 079957
	W81XWH-18-1-0413
	APP1143816
Additional information	© 2023 Elsevier Ltd. All rights reserved.

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Soloveva, Maria V., Jamadar, Sharna D., Poudel, Govinda and Georgiou-Karistianis, Nellie. (2018). A critical review of brain and cognitive reserve in Huntington's disease. Neuroscience and Biobehavioral Reviews. 88, pp. 155 - 169. https://doi.org/10.1016/j.neubiorev.2018.03.003

Temporal evolution of neutral activity and connectivity during microsleeps when rested and following sleep restriction

Poudel, Govinda, Innes, Carrie R. H. and Jones, Richard. (2018). Temporal evolution of neutral activity and connectivity during microsleeps when rested and following sleep restriction. NeuroImage. 174, pp. 263 - 273. https://doi.org/10.1016/j.neuroimage.2018.03.031

Neural correlates of decision-making during a Bayesian choice task

Poudel, Govinda, Bhattarai, Anjan, Dickinson, David L. and Drummond, Sean P. A.. (2017). Neural correlates of decision-making during a Bayesian choice task. NeuroReport. 28(4), pp. 193 - 199. https://doi.org/10.1097/WNR.0000000000000730

Emotion processing in persons who respond vicariously towards others in pain: Disinhibited left-lateralized neural activity for threatening expressions

Giummarra, Melita J., Poudel, Govinda, Niu, P. Amanda, Nicholls, Michael E. R., Fielding, Joanne, Verdejo-Garcia, Antonio and Labuschagne, Izelle. (2017). Emotion processing in persons who respond vicariously towards others in pain: Disinhibited left-lateralized neural activity for threatening expressions. Laterality: Assymetries of body, brain and cognition. 23(2), pp. 184 - 208. https://doi.org/10.1080/1357650X.2017.1349781

Longitudinal changes in the fronto-striatal network are associated with executive dysfunction and behavioral dysregulation in Huntington's disease: 30 months IMAGE-HD data

Dominguez, Juan F., Poudel, Govinda, Stout, Julie C., Gray, Marcus, Chua, Phyllis, Borowsky, Beth, Egan, Gary F. and Georgiou-Karistianis, Nellie. (2017). Longitudinal changes in the fronto-striatal network are associated with executive dysfunction and behavioral dysregulation in Huntington's disease: 30 months IMAGE-HD data. Cortex. 92, pp. 139 - 149. https://doi.org/10.1016/j.cortex.2017.04.001

Fronto-cerebellar dysfunction and dysconnectivity underlying cognition in Friedreich Ataxia: The IMAGE-FRDA Study

Harding, Ian H., Corben, Louise A., Storey, Elsdon, Egan, Gary F., Stagnitti, Monique R., Poudel, Govinda, Delatycki, Martin B. and Georgiou-Karistianis, Nellie. (2016). Fronto-cerebellar dysfunction and dysconnectivity underlying cognition in Friedreich Ataxia: The IMAGE-FRDA Study. Human Brain Mapping. 37(1), pp. 338 - 350. https://doi.org/10.1002/hbm.23034

Large-scale comparative visualisation of sets of multidimensional data

Vohl, Dany, Barnes, David G., Fluke, Christopher J., Poudel, Govinda, Georgiou-Karistianis, Nellie, Hassan, Amr H., Benovitski, Yuri, Wong, Tsz Ho, Kaluza, Owen L., Nguyen, Toan D. and Bonnington, C. Paul. (2016). Large-scale comparative visualisation of sets of multidimensional data. PeerJ. 2016(10), pp. 1 - 36. https://doi.org/10.7717/peerj-cs.88

Iron accumulation in the basal ganglia in Huntington's disease: Cross-sectional data from the IMAGE-HD study

Dominguez, Juan F., Ng, Amanda C. L., Poudel, Govinda, Stout, Julie C., Churchyard, A., Chua, Phyllis, Egan, Gary F. and Georgiou-Karistianis, Nellie. (2016). Iron accumulation in the basal ganglia in Huntington's disease: Cross-sectional data from the IMAGE-HD study. Journal of Neurology, Neurosurgery and Psychiatry. 87(5), pp. 545 - 549. https://doi.org/10.1136/jnnp-2014-310183

Subjective sleep problems in Huntington's disease: A pilot investigation of the relationship to brain structure, neurocognitive, and neuropsychiatric function

Baker, Chaya Rochel, Dominguez, Juan F., Stout, Julie C., Gabery, Sanaz, Churchyard, A., Chua, Phyllis, Egan, Gary F., Petersen, Asa, Georgiou-Karistianis, Nellie and Poudel, Govinda. (2016). Subjective sleep problems in Huntington's disease: A pilot investigation of the relationship to brain structure, neurocognitive, and neuropsychiatric function. Journal of the Neurological Sciences. 364, pp. 148 - 153. https://doi.org/10.1016/j.jns.2016.03.021

Microsleeps are associated with stage-2 sleep spindles from hippocampal-temporal network

Jonmohamadi, Yaqub, Poudel, Govinda, Innes, Carrie C. R. H. and Jones, Richard. (2016). Microsleeps are associated with stage-2 sleep spindles from hippocampal-temporal network. International Journal of Neural Systems. 26(4), pp. 1 - 12. https://doi.org/10.1142/S0129065716500155

Multimodal imaging biomarkers in premanifest and early Huntington's disease: 30-month IMAGE-HD data

Dominguez, Juan, Stout, Julie C., Poudel, Govinda, Churchyard, Andrew, Chua, Phyllis, Egan, Gary F. and Georgiou-Karistianis, Nellie. (2016). Multimodal imaging biomarkers in premanifest and early Huntington's disease: 30-month IMAGE-HD data. British Journal of Psychiatry. 208(6), pp. 571 - 578. https://doi.org/10.1192/bjp.bp.114.156588

Time-varying effective connectivity of the cortical neuroelectric activity associated with behavioural microsleeps

Toppi, Jlenia, Astolfi, Laura, Poudel, Govinda, H., Babiloni, Fabio, Jones, Richard and Innes, Carrie R. H.. (2016). Time-varying effective connectivity of the cortical neuroelectric activity associated with behavioural microsleeps. NeuroImage. 124, pp. 421 - 432. https://doi.org/10.1016/j.neuroimage.2015.08.059

Characterising upper limb movements in Huntington's Disease and the impact of restricted visual cues

Despard, Jessica, Ternes, Anne-Marie, Dimech-Betancourt, Bleydy, Poudel, Govinda, Churchyard, Andrew and Georgiou-Karistianis, Nellie. (2015). Characterising upper limb movements in Huntington's Disease and the impact of restricted visual cues. PLoS ONE. 10(8), pp. 1 - 18. https://doi.org/10.1371/journal.pone.0133709

Comparison of beamformers for EEG source signal reconstruction

Jonmohamadi, Yaqub, Poudel, Govinda, Innes, Carrie, Weiss, Daniel, Krueger, Rejko and Jones, Richard. (2014). Comparison of beamformers for EEG source signal reconstruction. Biomedical Signal Processing and Control. 14(1), pp. 175 - 188. https://doi.org/10.1016/j.bspc.2014.07.014

Source-space ICA for EEG source separation, localization, and time-course reconstruction

Jonmohamadi, Yaqub, Poudel, Govinda, Innes, Carrie and Jones, Richard. (2014). Source-space ICA for EEG source separation, localization, and time-course reconstruction. NeuroImage. 101(November), pp. 720 - 737. https://doi.org/10.1016/j.neuroimage.2014.07.052

The Multi-modal Australian ScienceS Imaging and Visualization Environment (MASSIVE) high performance computing infrastructure: Applications in neuroscience and neuroinformatics research

Goscinski, Wojtek J., McIntosh, Paul, Felzmann, Ulrich, Maksimenko, Anton, Hall, Christopher J., Gureyev, Timur, Thompson, Darren, Janke, Andrew, Galloway, Graham, Killeen, Neil E. B., Raniga, Parnesh, Kaluza, Owen, Ng, Amanda, Poudel, Govinda, Barnes, David G., Nguyen, Toan, Bonnington, Paul and Egan, Gary F.. (2014). The Multi-modal Australian ScienceS Imaging and Visualization Environment (MASSIVE) high performance computing infrastructure: Applications in neuroscience and neuroinformatics research. Frontiers in Neuroinformatics. 8(March), pp. 1 - 13. https://doi.org/10.3389/fninf.2014.00030

Functional magnetic resonance imaging of working memory in Huntington's disease: Cross-sectional data from the IMAGE-HD study

Georgiou-Karistianis, Nellie, Stout, Julie C., Domínguez, Juan F., Carron, Sarah P., Ando, Ayaka, Churchyard, Andrew, Chua, Phyllis, Bohanna, India, Dymowski, Alicia R., Poudel, Govinda and Egan, Gary F.. (2014). Functional magnetic resonance imaging of working memory in Huntington's disease: Cross-sectional data from the IMAGE-HD study. Human Brain Mapping. 35(5), pp. 1847 - 1864. https://doi.org/10.1002/hbm.22296

Voxel-ICA for reconstruction of source signal time-series and orientation in EEG and MEG

Jonmohamadi, Yaqub, Poudel, Govinda, Innes, Carrie and Jones, Richard. (2014). Voxel-ICA for reconstruction of source signal time-series and orientation in EEG and MEG. Australasian Physical and Engineering Sciences in Medicine. 37(2), pp. 457 - 464. https://doi.org/10.1007/s13246-014-0265-x

Multi-modal neuroimaging in premanifest and early Huntington's disease : 18 month longitudinal data from the IMAGE-HD study

Domínguez D, Juan F., Egan, Gary F., Gray, Marcus A., Poudel, Govinda R., Churchyard, Andrew, Chua, Phyllis, Stout, Julie C. and Georgiou-Karistianis, Nellie. (2013). Multi-modal neuroimaging in premanifest and early Huntington's disease : 18 month longitudinal data from the IMAGE-HD study. PLoS ONE. 8(9), pp. 1-10. https://doi.org/10.1371/journal.pone.0074131

Functional and connectivity changes during working memory in Huntington's disease : 18 month longitudinal data from the IMAGE-HD study

Georgiou-Karistianis, Nellie, Poudel, Govinda R., Domínguez D, Juan F., Langmaid, Rebecca, Gray, Marcus A., Churchyard, Andrew, Chua, Phyllis, Borowsky, Beth, Egan, Gary F. and Stout, Julie C.. (2013). Functional and connectivity changes during working memory in Huntington's disease : 18 month longitudinal data from the IMAGE-HD study. Brain and Cognition. 83(1), pp. 80-91. https://doi.org/10.1016/j.bandc.2013.07.004

Efficient and regular patterns of nighttime sleep are related to increased vulnerability to microsleeps following a single night of sleep restriction

Innes, Carrie R. H., Poudel, Govinda R. and Jones, Richard D.. (2013). Efficient and regular patterns of nighttime sleep are related to increased vulnerability to microsleeps following a single night of sleep restriction. Chronobiology International. 30(9), pp. 1187-1196. https://doi.org/10.3109/07420528.2013.810222

Distinct neural correlates of time-on-task and transient errors during a visuomotor tracking task after sleep restriction

Poudel, Govinda R., Innes, Carrie R. H. and Jones, Richard D.. (2013). Distinct neural correlates of time-on-task and transient errors during a visuomotor tracking task after sleep restriction. NeuroImage. 77, pp. 105-113. https://doi.org/10.1016/j.neuroimage.2013.03.054

Time-Varying Functional Connectivity for Understanding the Neural Basis of Behavioral Microsleeps

J Toppi, L Astolfi, GR Poudel, F Babiloni, L Macchiusi, D Mattia, S Salinari and RD Jones. (2012). Time-Varying Functional Connectivity for Understanding the Neural Basis of Behavioral Microsleeps. 34th Annual International Conference of the IEEE EMBS. IEEE, Institute of Electrical and Electronics Engineers. pp. 4708-4711 https://doi.org/10.1109/EMBC.2012.6347018

Performance of Beamformers on EEG Source Reconstruction

Yaqub Jon Mohamadi, Govinda Poudel, Carrie R H Innes and Richard Jones. (2012). Performance of Beamformers on EEG Source Reconstruction. 34th Annual International Conference of the IEEE EMBS. IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/EMBC.2012.6346476

Cerebral perfusion differences between drowsy and nondrowsy individuals after acute sleep restriction

Poudel, Govinda R., Innes, Carrie R. H. and Jones, Richard D.. (2012). Cerebral perfusion differences between drowsy and nondrowsy individuals after acute sleep restriction. Sleep. 35(8), pp. 1085-1096. https://doi.org/10.5665/sleep.1994