Dear Nádia,
On Mon, 6 Aug 2018 11:04:48 +0100, Nádia Canario <[log in to unmask]> wrote:
>Hello,
>
>I'm still trying to understand how VBM works, so this question and the
>future ones might be naives.
>
>So i have to perform a VBM in particular regions of interest. I already did
>the CAT tuturial for whole brain analysis and i want to ask if it is when
>we are defining our design that one should choose a ROI as a mask in order
>to restrain our statistics to the particular region. Is that how we so a
>ROI-based VBM?
No, this is rather a small volume correction (SVC) where you limit your statistics on ROIs from your anatomical hypothesis. ROI-based VBM in contrast is estimating mean values inside predefined atlas ROIs.
Best,
Christian
>
>
>Thanks in advance.
>
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