Neuroimaging Data Processing/Glossary

BOLD

blood-oxygen-level-dependent

EPI

(gradient-echo) echoplanar imaging

fMRI

functional magnetic resonance imaging

MRI

magnetic resonance imaging

rotation

turning the entire image around an axis in space: x-y, x-z, y-z (in the absence of translation)

TE

echo time

TR

repetition time

translation

moving the entire image volume along an axis in space: x-,y-, and z-axes (in the absence of rotation)

volume

one 3-dimensional image, i.e., one timepoint in a 4-dimensional fMRI image

voxel

one 3-dimensional unit (length × width × height) in a 3-dimensional image (analogous to a pixel in a 2-dimensional image)

See also

• Glossary. Introduction to Computers and Communications Technology
• Glossary. The Open Source Handbook of Neuroscience