Background and Purpose— Numerous imaging techniques have been developed and applied
to evaluate brain hemodynamics. Among these are positron emission tomography, single …

Functional MRI provides a powerful means to identify and trace the evolution, development,
and consolidation of cognitive neural networks through normal childhood. Neural network …

We examined developmental differences, in location and extent of fMRI language activation
maps, between adults and children while performing a semantic fluency task. We studied 29 …

Developmental dyscalculia (DD) is a deficit in number processing and arithmetic that affects
3–6% of schoolchildren. The goal of the present study was to analyze cerebral bases of DD …

Background: fMRI language tasks readily identify frontal language areas; temporal
activation has been less consistent. No studies have compared clinical visual judgment to …

… , the concentration-time curve, C m (t), is a convolution of the tissue concentration-time
response to an idealised bolus, C(t), and the arterial input function time course, C AIF (t): C m (t)=…

Background and Purpose— Rapid and precise identification of the penumbra is important
for decision-making in acute stroke. We sought to determine whether an early and moderate …

… calculated by the equation , where C m (t) is the measured tissue curve in the ROI, C AIF (t)
is … by the equation , where C(t) is the deconvolved tissue curve and C max is the maximum of …

As an attempt to better understand the metabolic basis for the previously reported increases
in glucose metabolism in the visual cortex of congenitally blind subjects, cerebral blood flow, …

BACKGROUND AND PURPOSE: Hippocampus volumetry is a useful surrogate marker for
the diagnosis of Alzheimer disease, but it seems insufficiently sensitive for the aMCI stage. …