Dear all,

I have questions about "AlphaSim".

First, the law data voxels were 3.75X3.75X5.
In that case, is it possible to smooth the data with 3.75 or 4 mm FWHM (smaller value than the 5 mm)?

Or, when using the AlphaSim, is it possible to calculate a minimum cluster volume threshold with 3.75 or 4 mm instead of actually used FWHM (6 or 8 mm) value in the smoothing procedure?
I read an article that they used 6 mm FWHM and then calculate a connectivity radius and a minimum cluster volume threshold as 4 mm and voxel size X 4mm X 4mm X 4mm respectively.
Is it possible? As I understood, I have to calculate with the value that I used in the smoothing procedure, not the law data voxel size.

Second, is it different to use "-mask filename" option and "-nx 64 -ny 64 -nx 16 -dx 3.75 -dy 3.75 -dz 5" option in the "AlphaSim"?
If it's different, what do I have to use as a mask file when I normalized functional images and anatomic images into the Talairach template image?

Please let me know about these problems.
Thank you ahead.

Woogul Lee