hi there,
>
> Hi Spmers,
>
> I am working on a VBM study. When I got the result, I found the value
> of each voxel was confused me.
>
> The value of all voxels are from 0 to 1. Is it correct?
>
that's correct - the value reflects the probability to be grey or white
>
> Additionally, a lot of voxels within grey matter were 1. Is there a
> ceiling effect here? How to change the scale of it?
>
values are also changed by the modulation option - ie using the jacobian
determinant of the transformation matrix you'll end up with the
'initial' volume value ..
the distribution you observe sounds fine to me
hope this helps
cyril
> Cheers,
>
> Xiaochu Zhang Ph.D
>
> Visiting Research Fellow
>
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