دورية أكاديمية
أعرض في EDS

Imaging functional neuroplasticity in human white matter tracts.

التفاصيل البيبلوغرافية
العنوان: Imaging functional neuroplasticity in human white matter tracts.
المؤلفون: Frizzell TO; BrainNET, Health and Technology District, Surrey, BC, Canada.; Faculty of Applied Sciences and Science, Simon Fraser University, Vancouver, BC, Canada., Phull E; BrainNET, Health and Technology District, Surrey, BC, Canada.; Faculty of Applied Sciences and Science, Simon Fraser University, Vancouver, BC, Canada., Khan M; BrainNET, Health and Technology District, Surrey, BC, Canada.; Faculty of Applied Sciences and Science, Simon Fraser University, Vancouver, BC, Canada., Song X; BrainNET, Health and Technology District, Surrey, BC, Canada.; Faculty of Applied Sciences and Science, Simon Fraser University, Vancouver, BC, Canada.; Health Sciences and Innovation, Surrey Memorial Hospital, Surrey, BC, Canada., Grajauskas LA; BrainNET, Health and Technology District, Surrey, BC, Canada.; Faculty of Applied Sciences and Science, Simon Fraser University, Vancouver, BC, Canada.; Cumming School of Medicine, University of Calgary, Calgary, AB, Canada., Gawryluk J; Division of Medical Sciences, Department of Psychology, University of Victoria, Victoria, BC, Canada.; DM Centre for Brain Health (Radiology), University of British Columbia, Vancouver, BC, Canada., D'Arcy RCN; BrainNET, Health and Technology District, Surrey, BC, Canada. rdarcy@sfu.ca.; Faculty of Applied Sciences and Science, Simon Fraser University, Vancouver, BC, Canada. rdarcy@sfu.ca.; Health Sciences and Innovation, Surrey Memorial Hospital, Surrey, BC, Canada. rdarcy@sfu.ca.; DM Centre for Brain Health (Radiology), University of British Columbia, Vancouver, BC, Canada. rdarcy@sfu.ca.
المصدر: Brain structure & function [Brain Struct Funct] 2022 Jan; Vol. 227 (1), pp. 381-392. Date of Electronic Publication: 2021 Nov 23.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Springer-Verlag Country of Publication: Germany NLM ID: 101282001 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1863-2661 (Electronic) Linking ISSN: 18632653 NLM ISO Abbreviation: Brain Struct Funct Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Berlin : Springer-Verlag, c2007-
مواضيع طبية MeSH: Neuronal Plasticity* , White Matter*/diagnostic imaging, Corpus Callosum ; Diffusion Tensor Imaging ; Humans ; Magnetic Resonance Imaging
مستخلص: 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.
(© 2021. The Author(s).)
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معلومات مُعتمدة: 206875 natural science and engineering research council of canada; FH2017-001 fraser health authority
فهرسة مساهمة: Keywords: Diffusion tensor imaging; Functional correlation tensors; Functional magnetic resonance imaging; Low-frequency oscillations; White matter activation
تواريخ الأحداث: Date Created: 20211123 Date Completed: 20220207 Latest Revision: 20240405
رمز التحديث: 20240405
مُعرف محوري في PubMed: PMC8741691
DOI: 10.1007/s00429-021-02407-4
PMID: 34812936
قاعدة البيانات: MEDLINE
الوصف
تدمد:1863-2661
DOI:10.1007/s00429-021-02407-4