Hi Yigal,
yes, you can select the vertex, make a label out of it, then dilate it
however many times you want. This will be approximately spherical.
Alternatively you could write some code to use the ?h.sphere surface to
compute geodesic distances (great circles) to do it more exactly, but we
don't have anything that will do that (easy enough to do in matlab though).
cheers
Bruce
On Sat,
7 Nov 2009, Yigal Agam wrote:
> Hi,
>
> In surface-based analysis, is it possible to create an ROI label that is
> a circle of a certain radius around a given vertex?
>
> Thanks,
> Yigal
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