Apparent Diffusion Coefficient fMRI shines light on white matter resting-state connectivity compared to BOLD DOI Creative Commons
Inès de Riedmatten, Arthur P C Spencer, Wiktor Olszowy

и другие.

Communications Biology, Год журнала: 2025, Номер 8(1)

Опубликована: Март 16, 2025

Resting-state functional magnetic resonance imaging (fMRI) is used to derive connectivity (FC) between brain regions. Typically, blood oxygen level-dependent (BOLD) contrast used. However, BOLD's reliance on neurovascular coupling poses challenges in reflecting activity accurately, leading reduced sensitivity white matter (WM). WM BOLD signals have long been considered physiological noise, although recent evidence shows that both stimulus-evoked and resting-state resemble those gray (GM), albeit smaller amplitude. We introduce apparent diffusion coefficient fMRI (ADC-fMRI) as a promising for GM FC, capturing activity-driven neuromorphological fluctuations. Our study compares BOLD-fMRI ADC-fMRI FC WM, showing mirrors GM, while more robust WM. displays higher average clustering node strength inter-subject similarity, compared BOLD. Taken together, this suggests reliable tool exploring incorporates nodes novel way. de Riedmatten et al. propose MRI assessing grey matter, addressing the limitations of activity. Their demonstrates methods provides measure, with similarity vascular making it alternative investigating whole-brain connectivity.

Язык: Английский

Topological features of brain functional networks are reorganized during chronic tinnitus: A graph‐theoretical study DOI Creative Commons
Shuting Han,

Yongcong Shen,

Xiaojuan Wu

и другие.

European Journal of Neuroscience, Год журнала: 2025, Номер 61(1)

Опубликована: Янв. 1, 2025

Abstract This study aimed to investigate the topological properties of brain functional networks in patients with tinnitus varying durations. A total 51 (divided into recent‐onset (ROT) and persistent (PT) groups) 27 healthy controls (HC) were recruited. All participants underwent resting‐state MRI audiological assessments. Graph theory was used examine network topology. The results showed that ROT group exhibited lower clustering coefficient, gamma, sigma local efficiency compared both HC PT groups (all P < 0.05). Significant reductions nodal coefficient found left caudate nucleus olfactory cortex, while increased centralities observed orbital middle frontal gyrus postcentral Furthermore, had decreased right lenticular putamen reduced cortex HCs Additionally, weaker connectivity between subcortical occipital lobe modules, as well prefrontal intra‐frontal patients. However, intra‐module module stronger than HCs. These findings suggest is associated alterations topology, but many these changes are restored persistence tinnitus.

Язык: Английский

Процитировано

1
Altered Local Spontaneous Activity and Functional Connectivity Density in Major Depressive Disorder Patients With Anhedonia DOI
Congchong Wu, Qingli Mu, Yuwei Xu

и другие.

Asian Journal of Psychiatry, Год журнала: 2025, Номер unknown, С. 104380 - 104380

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

1
Reciprocal causation relationship between rumination thinking and sleep quality: a resting-state fMRI study DOI
Shijun Yang, Xu Lei

Cognitive Neurodynamics, Год журнала: 2025, Номер 19(1)

Опубликована: Фев. 20, 2025

Язык: Английский

Процитировано

1
Temporal dynamic changes of intrinsic brain regional activity in depression with smoking DOI

Maoxing Zhong,

Weizhen Hou, Zhening Liu

и другие.

Journal of Affective Disorders, Год журнала: 2025, Номер 377, С. 175 - 183

Опубликована: Фев. 21, 2025

Язык: Английский

Процитировано

1
Apparent Diffusion Coefficient fMRI shines light on white matter resting-state connectivity compared to BOLD DOI Creative Commons
Inès de Riedmatten, Arthur P C Spencer, Wiktor Olszowy

и другие.

Communications Biology, Год журнала: 2025, Номер 8(1)

Опубликована: Март 16, 2025

Resting-state functional magnetic resonance imaging (fMRI) is used to derive connectivity (FC) between brain regions. Typically, blood oxygen level-dependent (BOLD) contrast used. However, BOLD's reliance on neurovascular coupling poses challenges in reflecting activity accurately, leading reduced sensitivity white matter (WM). WM BOLD signals have long been considered physiological noise, although recent evidence shows that both stimulus-evoked and resting-state resemble those gray (GM), albeit smaller amplitude. We introduce apparent diffusion coefficient fMRI (ADC-fMRI) as a promising for GM FC, capturing activity-driven neuromorphological fluctuations. Our study compares BOLD-fMRI ADC-fMRI FC WM, showing mirrors GM, while more robust WM. displays higher average clustering node strength inter-subject similarity, compared BOLD. Taken together, this suggests reliable tool exploring incorporates nodes novel way. de Riedmatten et al. propose MRI assessing grey matter, addressing the limitations of activity. Their demonstrates methods provides measure, with similarity vascular making it alternative investigating whole-brain connectivity.

Язык: Английский

Процитировано

1