|
In the study of cortical function, researchers are
not only interested in the location of neuronal activity, but in the time
course of cerebral activation as well. Most research on fMRI has
involved continually repeating the action (finger tapping, visual stimulation,
etc.) and averaging successive scans until a steady state solution
is reached. This provides no information on the rate of activation
and makes it difficult to resolve activity in two different, but spatially
close cortical areas. There is a lot or research going on in
determining the limits of temporal resolution and ways of graphically displaying
temporal information.
|
