Young healthy volunteers between the ages of 18-55.

fMRI will be done on 3 separate MRI scanners to compare.

For the task-based fMRI comparison, a region of interest will be drawn around activation maps overlying Broca's and Wernicke's language areas as well as the hand motor area. The data regarding each of the three regions will be treated separately. The statistical maxima for functional activation within these areas will be measured and compared using the same areas and technique on the three scanner platforms to determine which is the highest. This will be performed using the PRISM software we already use clinically to interpret fMRI.

For the resting state fMRI comparison, a standard measurement of signal to noise ratio will be employed specifically using the default mode network. This data will be reported separately from the task based outcome #1 as they are unrelated. Because this is a ratio is has no units of measurement.

Two board certified neuroradiologists will simply rank the 3 different scanner platforms (3T, Compact 3T, or the 7T) from most to least preferred for interpreting language and motor task-based fMRI's. This will be their overall qualitative gestalt based on years of daily experience reading these types of studies.