Cited by 31Traumatic Brain Injury ResearchAdvanced Neuroimaging Techniques and ApplicationsAutomotive and Human Injury Biomechanics

Altered Relationship between Working Memory and Brain Microstructure after Mild Traumatic Brain Injury

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Chung, S., Wang, X., Fieremans, E., Rath, J.F., Amorapanth, P., Foo, F.-Y.A., Morton, C.J., Novikov, D.S. +2 more·2019·American Journal of Neuroradiology

Abstract

BACKGROUND AND PURPOSE: Working memory impairment is one of the most troubling and persistent symptoms after mild traumatic brain injury (MTBI). Here we investigate how working memory deficits relate to detectable WM microstructural injuries to discover robust biomarkers that allow early identification of patients with MTBI at the highest risk of working memory impairment. MATERIALS AND METHODS: Multi-shell diffusion MR imaging was performed on a 3T scanner with 5 b-values. Diffusion metrics of fractional anisotropy, diffusivity and kurtosis (mean, radial, axial), and WM tract integrity were calculated. Auditory-verbal working memory was assessed using the Wechsler Adult Intelligence Scale, 4th ed, subtests: 1) Digit Span including Forward, Backward, and Sequencing; and 2) Letter-Number Sequencing. We studied 19 patients with MTBI within 4 weeks of injury and 20 healthy controls. Tract-Based Spatial Statistics and ROI analyses were performed to reveal possible correlations between diffusion metrics and working memory performance, with age and sex as covariates. RESULTS: = .04), mainly present in the right superior longitudinal fasciculus, which was not observed in healthy controls. Patients with MTBI also appeared to lose the normal associations typically seen in fractional anisotropy and axonal water fraction with Letter-Number Sequencing. Tract-Based Spatial Statistics results also support our findings. CONCLUSIONS: Differences between patients with MTBI and healthy controls with regard to the relationship between microstructure measures and working memory performance may relate to known axonal perturbations occurring after injury.

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  • Abnormal coherence and working memory impairments have been linked to diffuse axonal injury, highlighting a relationship between neurophysiology and cognition.

    “Abnormal coherence (Sponheim et al., 2011) and working memory impairments (Chung et al., 2019) have been linked to DAI, highlighting the relationship between neurophysiology and cognition.”

    From Investigation of neurobiological responses to theta burst stimulation during recovery from mild traumatic brain injury (mTBI) (2023) · cites this paper as Chung et al., 2019

    The Discussion reports poorer working-memory performance alongside a microstructural measure associated with axon injury in patients with mild traumatic brain injury. It does not establish that these patients had diffuse axonal injury specifically. The separate abnormal-coherence claim is attributed to Sponheim et al., not to Chung et al. (LLM, conf=0.84)

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  1. [25]Wechsler D Wechsler Adult Intelligence Scale. Pearson Assessment; 2008

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Authors
Chung, S., Wang, X., Fieremans, E., Rath, J. F., Amorapanth, P., Foo, F.-Y. A., Morton, C. J., Novikov, D. S., Flanagan, S. R., & Lui, Y. W.
Affiliations
  • Center for Advanced Imaging Innovation and Research (US)
  • New York University (US)
  • NYU Langone Health (US)
Corresponding author
Chung, S.
Venue
American Journal of Neuroradiology
Published
2019-08-01
Volume
40
Issue
9
Pages
1438-1444
ISSN
  • 0195-6108 (ISSN-L)
  • 1936-959X
OpenAlex
W2966508983
Cited by
31
References
55
Citations by year
2026: 2 · 2025: 3 · 2024: 8 · 2023: 4 · 2022: 8 · 2021: 2 · 2020: 3 · 2019: 1
FWCI
2.66
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • American Journal of Neuroradiology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health (P41 EB017183, R01 NS039135–11, R21 NS090349)
Topics
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Automotive and Human Injury Biomechanics
Keywords
mild traumatic brain injury, working memory, white matter microstructure, diffusion MRI, fractional anisotropy, kurtosis, superior longitudinal fasciculus, axonal injury, letter-number sequencing, digit span, biomarkers
MeSH terms
Adolescent, Adult, Aged, Axons, Body Water, Brain, Brain Concussion, Educational Status, Female, Humans, Male, Memory, Short-Term, Middle Aged, Nerve Net, Neuropsychological Tests, Prospective Studies, Wechsler Scales, Biomarkers, Diffusion Magnetic Resonance Imaging, Young Adult, White Matter

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