ArticleFrontiers in aging neuroscience2023
Changes in white matter functional networks across late adulthood.
Article in Frontiers in aging neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- White-Matter BOLD Encoding Beyond Marginal Connectivity.bioRxiv : the preprint server for biology · 2026Article
- Developmental changes of the white matter functional connectome.Molecular psychiatry · 2026Article
- The nature and interpretation of BOLD signals in white matter - A review.Magnetic resonance imaging · 2026Review
- Distributed fMRI Patterns Coupled to Low-Frequency Cardiorespiratory Dynamics Provide Markers of Aging.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Article
- Distributed fMRI patterns coupled to low-frequency cardiorespiratory dynamics provide markers of aging.bioRxiv : the preprint server for biology · 2025Article
- White-Matter BOLD Mediates Time-Varying Cortico-Cortical Functional Connectivity.bioRxiv : the preprint server for biology · 2025Article
- Functional contrast across the gray-white matter boundary.Nature communications · 2025Article
- Myelination selectively modulates BOLD signal in white matter.Research square · 2025Article
- Longitudinal effects of sex differences and apolipoprotein E genotype on white matter engagement among elderly.Brain communications · 2025Article
- Functional correlation tensors in brain white matter and the effects of normal aging.Brain imaging and behavior · 2024Article
- Quantification of mediation effects of white matter functional characteristics on cognitive decline in aging.Cerebral cortex (New York, N.Y. : 1991) · 2024Article
- Functional alterations in bipartite network of white and grey matters during aging.NeuroImage · 2023Article
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Authors and funding
10 authors.
Funding
Abstract
Introduction: The aging brain is characterized by decreases in not only neuronal density but also reductions in myelinated white matter (WM) fibers that provide the essential foundation for communication between cortical regions. Age-related degeneration of WM has been previously characterized by histopathology as well as T2 FLAIR and diffusion MRI. Recent studies have consistently shown that BOLD (blood oxygenation level dependent) effects in WM are robustly detectable, are modulated by neural activities, and thus represent a complementary window into the functional organization of the brain. However, there have been no previous systematic studies of whether or how WM BOLD signals vary with normal aging. We therefore performed a comprehensive quantification of WM BOLD signals across scales to evaluate their potential as indicators of functional changes that arise with aging. Methods: By using spatial independent component analysis (ICA) of BOLD signals acquired in a resting state, WM voxels were grouped into spatially distinct functional units. The functional connectivities (FCs) within and among those units were measured and their relationships with aging were assessed. On a larger spatial scale, a graph was reconstructed based on the pair-wise connectivities among units, modeling the WM as a complex network and producing a set of graph-theoretical metrics. Results: The spectral powers that reflect the intensities of BOLD signals were found to be significantly affected by aging across more than half of the WM units. The functional connectivities (FCs) within and among those units were found to decrease significantly with aging. We observed a widespread reduction of graph-theoretical metrics, suggesting a decrease in the ability to exchange information between remote WM regions with aging. Discussion: Our findings converge to support the notion that WM BOLD signals in specific regions, and their interactions with other regions, have the potential to serve as imaging markers of aging.
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