Dear SPMers,
I am using the Gaussian smoothing to preprocess the 3D-MRI images. The FWHM is set as 8mm-8mm-8mm in the interface of the SPM8 software.
If the size of the voxel in the image is 2mm-2mm-2mm, is the actual FWHM 16mm-16mm-16mm?
Does “8mm” in the SPM8 software mean “8 voxels” or not? Is the default voxel size 1mm-1mm-1mm or not?
Thanks in advance.
Victor
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