Ultra-slow oscillations in fMRI and resting-state connectivity: neuronal and vascular contributions and technical confounds
Summary Ultra-slow,∼ 0.1-Hz variations in the oxygenation level of brain blood are widely
used as an fMRI-based surrogate of" resting-state" neuronal activity. The temporal …
used as an fMRI-based surrogate of" resting-state" neuronal activity. The temporal …
Low frequency systemic hemodynamic “noise” in resting state BOLD fMRI: characteristics, causes, implications, mitigation strategies, and applications
Advances in functional magnetic resonance imaging (fMRI) acquisition have improved
signal to noise to the point where the physiology of the subject is the dominant noise source …
signal to noise to the point where the physiology of the subject is the dominant noise source …
A parsimonious description of global functional brain organization in three spatiotemporal patterns
Resting-state functional magnetic resonance imaging (MRI) has yielded seemingly
disparate insights into large-scale organization of the human brain. The brain's large-scale …
disparate insights into large-scale organization of the human brain. The brain's large-scale …
Vascular and neural basis of the BOLD signal
PJ Drew - Current opinion in neurobiology, 2019 - Elsevier
Highlights•The architecture of the cerebral vasculature sculpts the hemodynamics
response.•The BOLD signal is correlated with increases in gamma-band power in the LFP …
response.•The BOLD signal is correlated with increases in gamma-band power in the LFP …
Cerebrovascular reactivity mapping without gas challenges: a methodological guide
Cerebrovascular reactivity (CVR) is defined as the ability of vessels to alter their caliber in
response to vasoactive factors, by means of dilating or constricting, in order to increase or …
response to vasoactive factors, by means of dilating or constricting, in order to increase or …
[HTML][HTML] Reduced coupling between cerebrospinal fluid flow and global brain activity is linked to Alzheimer disease–related pathology
The glymphatic system plays an important role in clearing the amyloid-β (Aβ) and tau
proteins that are closely linked to Alzheimer disease (AD) pathology. Glymphatic clearance …
proteins that are closely linked to Alzheimer disease (AD) pathology. Glymphatic clearance …
[HTML][HTML] Implementation of artificial intelligence and machine learning-based methods in brain–computer interaction
Brain–computer interfaces are used for direct two-way communication between the human
brain and the computer. Brain signals contain valuable information about the mental state …
brain and the computer. Brain signals contain valuable information about the mental state …
Separating vascular and neuronal effects of age on fMRI BOLD signals
KA Tsvetanov, RNA Henson… - … Transactions of the …, 2021 - royalsocietypublishing.org
Accurate identification of brain function is necessary to understand the neurobiology of
cognitive ageing, and thereby promote well-being across the lifespan. A common tool used …
cognitive ageing, and thereby promote well-being across the lifespan. A common tool used …
Brain activity fluctuations propagate as waves traversing the cortical hierarchy
The brain exhibits highly organized patterns of spontaneous activity as measured by resting-
state functional magnetic resonance imaging (fMRI) fluctuations that are being widely used …
state functional magnetic resonance imaging (fMRI) fluctuations that are being widely used …
Rude mechanicals in brain haemodynamics: non-neural actors that influence blood flow
Fluctuations in blood oxygenation and flow are widely used to infer brain activity during
resting-state functional magnetic resonance imaging (fMRI). However, there are strong …
resting-state functional magnetic resonance imaging (fMRI). However, there are strong …