Hi, I had a few questions I was hoping some of you could answer. I was wondering if it is possible to
use TBSS on Probtrack results? For example if I wanted to compare the FA values of the probabilistic
pathways from the corpus callsoum to the motor cortex between subjects. Should I use a different
file to start TBSS (like mean_fsamples)? In the FSL TBSS guide they use the dti_FA file obtained from
DTIFit but that data has yet to be bedposted or run through probtrack so I am assuming that would
not be what I want to use. Another question I have is in regards to the calculation of the probabilistic
FA values. Are the FA values weighted according to the probabilty of the sample path? By that I mean
if a sample path has a certain probability then would the FA value for that path be multiplied by that
probability or are all the FA values of all the possible paths in the distribution weighted equally and
then averaged? Sorry for the long and probably somewhat wordy post. Thanks for your time.
-Ravi
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