Functional magnetic resonance imaging (fMRI) is one of the most important methods for in
vivo investigation of cognitive processes in the human brain. Within the last two decades, an …

A general mathematical model for the delivery of O2 to the brain is presented, based on the
assumptions that all of the brain capillaries are perfused at rest and that all of the oxygen …

Highly accurate surface models of the cerebral cortex are becoming increasingly important
as tools in the investigation of the functional organization of the human brain. The …

A method is described for the correction of geometric distortions occurring in echo planar
images. The geometric distortions are caused in large part by static magnetic field inho …

Image processing strategies for functional magnetic resonance imaging (FMRI) data sets
acquired using a gradient‐recalled echo‐planar imaging sequence are considered. The …

A particularly powerful paradigm for functional MR imaging of microvascular hemodynamics
incorporates paramagnetic materials that create significant image contrast. These include …

Relative cerebral blood flow changes can be measured by a novel simple blood flow
measurement technique with endogenous water protons as a tracer based on flow‐sensitive …

Modern neuroimaging techniques use signals originating from microcirculation to map brain
function. In this study, activity-dependent changes in oxyhemoglobin, deoxyhemoglobin, and …

Previous studies have shown that under some conditions, noise fluctuations in an fMRI time-
course are dominated by physiological modulations of the image intensity with secondary …

The physiological noise in the resting brain, which arises from fluctuations in metabolic‐
linked brain physiology and subtle brain pulsations, was investigated in six healthy …