Dear SPMers,
In VBM analysis :
1) what is the rational behind the use of absolute vs relative
thresholding ?
2) in case of absolute threshold, the value generally used is 0.1. For
my understanding, this means that voxels for instance labeled as WM but
having more than 10% GM will be considered in a GM statistic (based on
C1*.* images) and vice versa. Is this correct ?
3) in case of relative, how is calculated the global value used for the
proportional scaling ?
thanks for your reply
best
Michel
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