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Neural Activity and Oscillations as Biological Markers in Traumatic Brain Injury

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Biomarkers in Trauma, Injury and Critical Care

Abstract

Mild traumatic brain injury (mTBI) – or concussion as it is oftentimes known – is a common type of acquired brain injury that generally has a favorable prognosis. However, a significant minority of cases present with persistent postconcussive symptoms that can reduce quality of life through functional impairment. Structural brain imaging has shown to be insufficient for the scope of the problem, now labeled a “silent epidemic,” and there are increasingly concerns about the number of accumulated head knocks during sport culminating in neurodegenerative disease, such as chronic traumatic encephalopathy (CTE). The advent of powerful new approaches to understanding brain function, such as magnetoencephalography (MEG), has shown promise in revealing the electrophysiological disturbances and functional consequence that mTBI can cause. In this chapter, we review some of the literature that shows MEG can image this “invisible injury” and potentially offer a rapid diagnostic tool for evaluating “subtle” brain injuries.

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Abbreviations

ADHD:

Attention-deficit/Hyperactivity disorder

CTE:

Chronic traumatic encephalopathy

DAI:

Diffuse axonal injury

DMN :

Default mode network

DTI:

Diffusion tensor imaging

DWI:

Diffusion-weighted imaging

EEG:

Electroencephalography

FC:

Functional connectivity

fMRI:

Functional magnetic resonance imaging

GCS:

Glasgow Coma Scale

LoC:

Loss of consciousness

MEG:

Magnetoencephalography

mTBI :

Mild traumatic brain injury

OPM:

Optically pumped magnetometry

PPCS :

Persistent post-concussive symptoms

PTA:

Post-traumatic amnesia

PTSD:

Post-traumatic stress disorder

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Correspondence to Benjamin T. Dunkley .

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Dunkley, B.T. (2022). Neural Activity and Oscillations as Biological Markers in Traumatic Brain Injury. In: Rajendram, R., Preedy, V.R., Patel, V.B. (eds) Biomarkers in Trauma, Injury and Critical Care. Biomarkers in Disease: Methods, Discoveries and Applications. Springer, Cham. https://doi.org/10.1007/978-3-030-87302-8_46-1

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  • DOI: https://doi.org/10.1007/978-3-030-87302-8_46-1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-87302-8

  • Online ISBN: 978-3-030-87302-8

  • eBook Packages: Springer Reference Biomedicine and Life SciencesReference Module Biomedical and Life Sciences

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