Dear SPM'ers
1) I used The Full Monty.. model. After analysis I chose SVC and
Search Volume... Image. Then I selected manually created mask image.
2) I tried explicit masking in The Full Monty... model using the same
manually created mask image. Otherwise the Full Monty... model was the
same as earlier.
The statistics (Z-scores and p-values) were similar but not quite the
same. Search volume and the number of resels were slightly different
between SVC and explicit masking. The activated clusters were located in
the same places and the number of voxels in each cluster were almost the
same.
What causes the slight differences between explicit masking and SVC?
In my opinion, explicit masking can be used to visualize SVC
results. Any comments on this?
I asked this earlier (June 2000) and didn't get any answers.
Thanks in advance,
Esa Wallius
Turku PET centre, Finland
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