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Published in: Brain Structure and Function 1/2022

01-01-2022 | Magnetic Resonance Imaging | Original Article

Imaging functional neuroplasticity in human white matter tracts

Authors: Tory O. Frizzell, Elisha Phull, Mishaa Khan, Xiaowei Song, Lukas A. Grajauskas, Jodie Gawryluk, Ryan C. N. D’Arcy

Published in: Brain Structure and Function | Issue 1/2022

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Abstract

Magnetic resonance imaging (MRI) studies are sensitive to biological mechanisms of neuroplasticity in white matter (WM). In particular, diffusion tensor imaging (DTI) has been used to investigate structural changes. Historically, functional MRI (fMRI) neuroplasticity studies have been restricted to gray matter, as fMRI studies have only recently expanded to WM. The current study evaluated WM neuroplasticity pre–post motor training in healthy adults, focusing on motor learning in the non-dominant hand. Neuroplasticity changes were evaluated in two established WM regions-of-interest: the internal capsule and the corpus callosum. Behavioral improvements following training were greater for the non-dominant hand, which corresponded with MRI-based neuroplasticity changes in the internal capsule for DTI fractional anisotropy, fMRI hemodynamic response functions, and low-frequency oscillations (LFOs). In the corpus callosum, MRI-based neuroplasticity changes were detected in LFOs, DTI, and functional correlation tensors (FCT). Taken together, the LFO results converged as significant amplitude reductions, implicating a common underlying mechanism of optimized transmission through altered myelination. The structural and functional neuroplasticity findings open new avenues for direct WM investigations into mapping connectomes and advancing MRI clinical applications.
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Literature
go back to reference Frizzell T, Grajauskas LA, Liu CC, Hajra SG, Song X, D’Arcy RCN (2020) White matter neuroplasticity: motor learning activates the internal capsule and reduces hemodynamic response variability. Font Hum Neurosci 14:509258CrossRef Frizzell T, Grajauskas LA, Liu CC, Hajra SG, Song X, D’Arcy RCN (2020) White matter neuroplasticity: motor learning activates the internal capsule and reduces hemodynamic response variability. Font Hum Neurosci 14:509258CrossRef
go back to reference Maldjian JA, Gottschalk A, Detre JA, Alsop D (1999) Basal ganglia and white matter activation using functional MRI at 4 Tesla. In: Proceedings of the 7th annual meeting of the international society of magnetic resonance in medicine, Philadelphia, USA. Maldjian JA, Gottschalk A, Detre JA, Alsop D (1999) Basal ganglia and white matter activation using functional MRI at 4 Tesla. In: Proceedings of the 7th annual meeting of the international society of magnetic resonance in medicine, Philadelphia, USA.
go back to reference Mosier KM, Liu WC, Maldjian JA, Shah R, Modi B (1999) Lateralization of cortical function in swallowing: a functional MR imaging study. Am J Neuroradiol 20(8):1520–1526PubMedPubMedCentral Mosier KM, Liu WC, Maldjian JA, Shah R, Modi B (1999) Lateralization of cortical function in swallowing: a functional MR imaging study. Am J Neuroradiol 20(8):1520–1526PubMedPubMedCentral
go back to reference Smith SM, Jenkinson M, Woolrich MW, Beckmann CF, Behrens TEJ, Johansen-Berg H, Bannister PR et al. (2004) Advances in functional and structural MR image analysis and implementation as FSL technical report TR04SS2. www.fmrib.ox.ac.uk/analysis. Smith SM, Jenkinson M, Woolrich MW, Beckmann CF, Behrens TEJ, Johansen-Berg H, Bannister PR et al. (2004) Advances in functional and structural MR image analysis and implementation as FSL technical report TR04SS2. www.​fmrib.​ox.​ac.​uk/​analysis.
go back to reference Steele CJ, Bailey JA, Zatorre RJ, Penhune VB (2013) Early musical training and white-matter plasticity in the corpus callosum: evidence for a sensitive period. J Neurosci 33(3):1282–1290CrossRefPubMedPubMedCentral Steele CJ, Bailey JA, Zatorre RJ, Penhune VB (2013) Early musical training and white-matter plasticity in the corpus callosum: evidence for a sensitive period. J Neurosci 33(3):1282–1290CrossRefPubMedPubMedCentral
go back to reference Weber B, Treyer V, Oberholzer N, Jaermann T, Boesiger P, Brugger P, Regard M, Buck A, Savazzi S, Marzi CA (2005) Attention and interhemispheric transfer: a behavioral and f MRI study. J Cogn Neurosci 17:113–123CrossRefPubMed Weber B, Treyer V, Oberholzer N, Jaermann T, Boesiger P, Brugger P, Regard M, Buck A, Savazzi S, Marzi CA (2005) Attention and interhemispheric transfer: a behavioral and f MRI study. J Cogn Neurosci 17:113–123CrossRefPubMed
Metadata
Title
Imaging functional neuroplasticity in human white matter tracts
Authors
Tory O. Frizzell
Elisha Phull
Mishaa Khan
Xiaowei Song
Lukas A. Grajauskas
Jodie Gawryluk
Ryan C. N. D’Arcy
Publication date
01-01-2022
Publisher
Springer Berlin Heidelberg
Published in
Brain Structure and Function / Issue 1/2022
Print ISSN: 1863-2653
Electronic ISSN: 1863-2661
DOI
https://doi.org/10.1007/s00429-021-02407-4

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