Echo-time dependence of the BOLD response transients–a window into brain functional physiology
The blood oxygenation level-dependent (BOLD) fMRI response to neuronal activation
results from a complex interplay of induced metabolic and vascular changes. Thus, its …
results from a complex interplay of induced metabolic and vascular changes. Thus, its …
Temporal jitter of the BOLD signal reveals a reliable initial dip and improved spatial resolution
Summary fMRI, one of the most important noninvasive brain imaging methods, relies on the
blood oxygen level-dependent (BOLD) signal, whose precise underpinnings are still not fully …
blood oxygen level-dependent (BOLD) signal, whose precise underpinnings are still not fully …
Spatial heterogeneity of the nonlinear dynamics in the FMRI BOLD response
RM Birn, ZS Saad, PA Bandettini - Neuroimage, 2001 - Elsevier
Recent studies of blood oxygenation level dependent (BOLD) signal responses averaged
over a region of interest have demonstrated that the response is nonlinear with respect to …
over a region of interest have demonstrated that the response is nonlinear with respect to …
Relative latency and temporal variability of hemodynamic responses at the human primary visual cortex
FH Lin, JR Polimeni, JFL Lin, KWK Tsai, YH Chu… - Neuroimage, 2018 - Elsevier
The blood-oxygen-level-dependent (BOLD) functional MRI (fMRI) signal is a robust
surrogate for local neuronal activity. However, it has been shown to vary substantially across …
surrogate for local neuronal activity. However, it has been shown to vary substantially across …
Transient and sustained BOLD responses to sustained visual stimulation
K Uludağ - Magnetic resonance imaging, 2008 - Elsevier
Examining the transients of the blood-oxygenation-level-dependent (BOLD) signal using
functional magnetic resonance imaging is a tool to probe basic brain physiology. In addition …
functional magnetic resonance imaging is a tool to probe basic brain physiology. In addition …
The effect of stimulus duty cycle and “off” duration on BOLD response linearity
RM Birn, PA Bandettini - Neuroimage, 2005 - Elsevier
An ongoing question in functional MRI is precisely how measured signal changes relate to
neuronal activity. While this question has been probed using animal models and …
neuronal activity. While this question has been probed using animal models and …
Hemodynamic nonlinearities affect BOLD fMRI response timing and amplitude
The interpretation of functional magnetic resonance imaging (fMRI) studies based on blood
oxygen-level dependent (BOLD) contrast generally relies on the assumption of a linear …
oxygen-level dependent (BOLD) contrast generally relies on the assumption of a linear …
Dynamics of the cerebral blood flow response to brief neural activity in human visual cortex
The blood oxygen-level dependent (BOLD) functional magnetic resonance imaging (fMRI)
signal depends on an interplay of cerebral blood flow (CBF), oxygen metabolism, and …
signal depends on an interplay of cerebral blood flow (CBF), oxygen metabolism, and …
Variability of the coupling of blood flow and oxygen metabolism responses in the brain: a problem for interpreting BOLD studies but potentially a new window on the …
RB Buxton, VEM Griffeth, AB Simon… - Frontiers in …, 2014 - frontiersin.org
Recent studies from our group and others using quantitative fMRI methods have found that
variations of the coupling ratio of blood flow (CBF) and oxygen metabolism (CMRO2) …
variations of the coupling ratio of blood flow (CBF) and oxygen metabolism (CMRO2) …
Stimulus-dependent BOLD and perfusion dynamics in human V1
Blood oxygenation level-dependent (BOLD) fMRI signals often exhibit pronounced over-or
undershoot upon changes in stimulation state. Current models postulate that this is due to …
undershoot upon changes in stimulation state. Current models postulate that this is due to …