The physics of functional magnetic resonance imaging (fMRI)

RB Buxton - Reports on Progress in Physics, 2013 - iopscience.iop.org
Functional magnetic resonance imaging (fMRI) is a methodology for detecting dynamic
patterns of activity in the working human brain. Although the initial discoveries that led to …

Regulation of the cerebral circulation: bedside assessment and clinical implications

J Donnelly, KP Budohoski, P Smielewski, M Czosnyka - Critical care, 2016 - Springer
Regulation of the cerebral circulation relies on the complex interplay between
cardiovascular, respiratory, and neural physiology. In health, these physiologic systems act …

The amplitude and timing of the BOLD signal reflects the relationship between local field potential power at different frequencies

C Magri, U Schridde, Y Murayama… - Journal of …, 2012 - Soc Neuroscience
There is growing evidence that several components of the mass neural activity contributing
to the local field potential (LFP) can be partly separated by decomposing the LFP into …

Fast fMRI can detect oscillatory neural activity in humans

LD Lewis, K Setsompop, BR Rosen… - Proceedings of the …, 2016 - National Acad Sciences
Oscillatory neural dynamics play an important role in the coordination of large-scale brain
networks. High-level cognitive processes depend on dynamics evolving over hundreds of …

The influence of carbon dioxide on brain activity and metabolism in conscious humans

F Xu, J Uh, MR Brier, J Hart Jr… - Journal of Cerebral …, 2011 - journals.sagepub.com
A better understanding of carbon dioxide (CO2) effect on brain activity may have a profound
impact on clinical studies using CO2 manipulation to assess cerebrovascular reserve and …

Interpreting oxygenation-based neuroimaging signals: the importance and the challenge of understanding brain oxygen metabolism

R Buxton - Frontiers in neuroenergetics, 2010 - frontiersin.org
Functional magnetic resonance imaging (fMRI) is widely used to map patterns of brain
activation based on blood oxygenation level dependent (BOLD) signal changes associated …

Quantitative measurement of cerebral physiology using respiratory-calibrated MRI

DP Bulte, M Kelly, M Germuska, J Xie, MA Chappell… - Neuroimage, 2012 - Elsevier
Functional magnetic resonance imaging typically measures signal increases arising from
changes in the transverse relaxation rate over small regions of the brain and associates …

Noninvasive quantification of whole‐brain cerebral metabolic rate of oxygen (CMRO2) by MRI

F Xu, Y Ge, H Lu - Magnetic Resonance in Medicine: An Official …, 2009 - Wiley Online Library
Cerebral metabolic rate of oxygen (CMRO2) is an important marker for brain function and
brain health. Existing techniques for quantification of CMRO2 with positron emission …

[HTML][HTML] Physiologically informed dynamic causal modeling of fMRI data

M Havlicek, A Roebroeck, K Friston, A Gardumi… - Neuroimage, 2015 - Elsevier
The functional MRI (fMRI) signal is an indirect measure of neuronal activity. In order to
deconvolve the neuronal activity from the experimental fMRI data, biophysical generative …

Evidence cerebral blood-flow regulation mediates exercise–cognition links in healthy young adults.

H Guiney, SJ Lucas, JD Cotter, L Machado - Neuropsychology, 2015 - psycnet.apa.org
Objective: Healthy young adults are presumed to be in their cognitive prime, yet emerging
evidence indicates that regular engagement in physical activity can still benefit their …