Imaging faster neural dynamics with fast fMRI: A need for updated models of the hemodynamic response
JR Polimeni, LD Lewis - Progress in neurobiology, 2021 - Elsevier
Fast fMRI enables the detection of neural dynamics over timescales of hundreds of
milliseconds, suggesting it may provide a new avenue for studying subsecond neural …
milliseconds, suggesting it may provide a new avenue for studying subsecond neural …
Cerebral blood flow response to functional activation
OB Paulson, SG Hasselbalch… - Journal of Cerebral …, 2010 - journals.sagepub.com
Cerebral blood flow (CBF) and cerebral metabolic rate are normally coupled, that is an
increase in metabolic demand will lead to an increase in flow. However, during functional …
increase in metabolic demand will lead to an increase in flow. However, during functional …
The statistical analysis of fMRI data
MA Lindquist - 2008 - projecteuclid.org
In recent years there has been explosive growth in the number of neuroimaging studies
performed using functional Magnetic Resonance Imaging (fMRI). The field that has grown …
performed using functional Magnetic Resonance Imaging (fMRI). The field that has grown …
Modeling the hemodynamic response function in fMRI: efficiency, bias and mis-modeling
Most brain research to date have focused on studying the amplitude of evoked fMRI
responses, though there has recently been an increased interest in measuring onset, peak …
responses, though there has recently been an increased interest in measuring onset, peak …
Brain mediators of cardiovascular responses to social threat: part I: reciprocal dorsal and ventral sub-regions of the medial prefrontal cortex and heart-rate reactivity
Social threat is a key component of mental “stress” and a potent generator of negative
emotions and physiological responses in the body. How the human brain processes social …
emotions and physiological responses in the body. How the human brain processes social …
Functional magnetic resonance imaging detection of vascular reactivity in cerebral amyloid angiopathy
Objective: In addition to its role in hemorrhagic stroke, advanced cerebral amyloid
angiopathy (CAA) is also associated with ischemic lesions and vascular cognitive …
angiopathy (CAA) is also associated with ischemic lesions and vascular cognitive …
More homogeneous capillary flow and oxygenation in deeper cortical layers correlate with increased oxygen extraction
Our understanding of how capillary blood flow and oxygen distribute across cortical layers to
meet the local metabolic demand is incomplete. We addressed this question by using two …
meet the local metabolic demand is incomplete. We addressed this question by using two …
A functional magnetic resonance imaging predictor of treatment response to venlafaxine in generalized anxiety disorder
BACKGROUND: Functional magnetic resonance imaging (fMRI) holds promise as a
noninvasive means of identifying neural responses that can be used to predict treatment …
noninvasive means of identifying neural responses that can be used to predict treatment …
A calibration method for quantitative BOLD fMRI based on hyperoxia
The estimation of changes in CMRO2 using functional MRI involves an essential calibration
step using a vasoactive agent to induce an isometabolic change in CBF. This calibration …
step using a vasoactive agent to induce an isometabolic change in CBF. This calibration …
Measuring cerebrovascular reactivity: the dynamic response to a step hypercapnic stimulus
J Poublanc, AP Crawley, O Sobczyk… - Journal of Cerebral …, 2015 - journals.sagepub.com
We define cerebral vascular reactivity (CVR) as the ratio of the change in blood oxygen level-
dependent (BOLD) magnetic resonance imaging (MRI) signal (S) to an increase in blood …
dependent (BOLD) magnetic resonance imaging (MRI) signal (S) to an increase in blood …