In mri_glmfit, this is just the contrast value (gamma) divided by the
residual stddev (rstd), and something similar for the selxavg3-sess. In
mri_glmfit, the residual is the residual of the group model; in selxavg
it is the residual from the timer series modeling, so they are very
different
Hi Surfers,
As you know, there are multiple ways to measure contrast to noise
ration (CNR). I am trying to understand how is cnr.nii generated as an
output from mri_glmfit command.
I also noticed that, cnr.nii values are mostly NaN when I have one
subject only. I am wondering why it is not
