Issues in fMRI  From Wikipedia, the free encyclopedia Jump to:
navigation, search  Functional magnetic resonance imaging, also
known as ƒMRI, is a neuroimaging technique that measures the
blood oxygenation, also called BOLD, that accompanies neuronal
activity. The blood oxygenation level dependent fMRI has
relatively high spatial resolution (of the order of a few
millimetres), but lower temporal resolution (a few seconds), in
comparison to other neuroimaging methods.[1] In recent years,
ƒMRI usage has increased exponentially. Like other research and
medical techniques, functional magnetic resonance imaging too
has theoretical and methodological limitations, some shared in
common with other brain-imaging methods such as EEG, MEG and
single-electrode recordings, and some different from them.
Limitations on experimental design and data acquisition[edit]
If the baseline condition is too close to maximum activation,
certain processes may not be represented appropriately.[2]
Another limitation on experimental de