Hi
I had some problems with the mask created in a fixed-effect multi-subject
analysis which excluded many important voxels. After looking for a solution in
old messages of this list I found a message wrote by Karl in that he suggests
to reduce the grey matter threshold before estimating the SPm.mat.
Is it sufficient to change directly the SPM code ( spm_fmri_spm_ui.m at line
413) which is originally:
%-Masking structure automatically set to 80% of mean
%=======================================================================
try
TH = g.*gSF*defaults.mask.thresh;
catch
TH = g.*gSF*0.8;
for example to
TH = g.*gSF*0.5;
or is it necessary to change other codes also?
Thanks in advance,
Mirtes
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