Valerie E. M. Griffeth

Publication Activity (10 Years)

Years Active: 2011-2016
Publications (10 Years): 1

Top Topics

Error Accumulation

Calibration Method

Cerebral Blood Flow

Top Venues

Publications

Alberto Merola, Kevin Murphy, Alan J. Stone, Michael A. Germuska, Valerie E. M. Griffeth, Nicholas P. Blockley, Richard B. Buxton, Richard G. Wise
Measurement of oxygen extraction fraction (OEF): An optimized BOLD signal model for use with hypercapnic and hyperoxic calibration. NeuroImage 129 (2016)
Valerie E. M. Griffeth, Aaron B. Simon, Richard B. Buxton
The coupling of cerebral blood flow and oxygen metabolism with brain activation is similar for simple and complex stimuli in human primary visual cortex. NeuroImage 104 (2015)
Nicholas P. Blockley, Valerie E. M. Griffeth, Alan J. Stone, Hannah V. Hare, Daniel P. Bulte
Sources of systematic error in calibrated BOLD based mapping of baseline oxygen extraction fraction. NeuroImage 122 (2015)
Nicholas P. Blockley, Valerie E. M. Griffeth, Aaron B. Simon, David J. Dubowitz, Richard B. Buxton
Calibrating the BOLD response without administering gases: Comparison of hypercapnia calibration with calibration using an asymmetric spin echo. NeuroImage 104 (2015)
Nicholas P. Blockley, Valerie E. M. Griffeth, Michael A. Germuska, Daniel P. Bulte, Richard B. Buxton
An analysis of the use of hyperoxia for measuring venous cerebral blood volume: Comparison of the existing method with a new analysis approach. NeuroImage 72 (2013)
Nicholas P. Blockley, Valerie E. M. Griffeth, Richard B. Buxton
responses: Comparison of a new approach with existing methods. NeuroImage 60 (1) (2012)
Valerie E. M. Griffeth, Richard B. Buxton
A theoretical framework for estimating cerebral oxygen metabolism changes using the calibrated-BOLD method: Modeling the effects of blood volume distribution, hematocrit, oxygen extraction fraction, and tissue signal properties on the BOLD signal. NeuroImage 58 (1) (2011)
Valerie E. M. Griffeth, Joanna E. Perthen, Richard B. Buxton
Prospects for quantitative fMRI: Investigating the effects of caffeine on baseline oxygen metabolism and the response to a visual stimulus in humans. NeuroImage 57 (3) (2011)