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
O
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 t