PURPOSE To evaluate the effect of objects moving outside the field of view on functional
MR imaging. METHODS Echo-Planar image sequences were acquired in the sagittal plane …

To assess the effect of stimulus correlated motion on the appearance of functional magnetic
resonance images, conventional visual and motor protocols were each performed by four …

BACKGROUND AND PURPOSE: Functional MR imaging studies of the brain should be
interpreted in the context of their reproducibility. We assessed the reproducibility of visual …

BACKGROUND AND PURPOSE: Movements of the participant during blood oxygen level–
dependent (BOLD) functional MR imaging cerebral activation studies are known to produce …

Localized brain activation in response to moving visual stimuli was studied by functional
magnetic resonance imaging (fMRI). Stimuli were 100 small white dots randomly arranged …

Within-subject reproducibility of visual brain activation using multislice echo planar
functional magnetic resonance imaging (fMRI) was tested. Ten healthy subjects underwent …

Subject motion present during the time course of functional activation studies is a pervasive
problem in mapping the spatial and temporal characteristics of brain activity. In functional …

PURPOSE To determine the test-retest precision of functional MR maps of regions in the
brain" activated" by sensory, motor, and cognitive tasks. METHODS Echo-planar images …

Functional activation of the human brain can be visualized with magnetic resonance (MR)
imaging, but most studies so far have used echo-planar imaging or magnetic fields of 2 T …

Functional activation of the brain has been visualized using magnetic resonance imaging
(MRI). Early studies used echo planar imaging and magnetic fields of 2 T and above …