Hi
On 23 Jul 2009, at 15:18, William Sohn wrote:
> Dear FSL community,
>
> I am currently doing ROI analysis in the resting state and I had a few
> questions.
>
> I want to seed a specific coordinate of the brain. I know we can
> convert the
> filtered_func data into MNI coordinates, but i was wondering if we
> can do the
> opposite. Say create a mask in MNI space and convert it so it will
> seed the
> same region in a non-normalized dataset (I want to use featquery and
> seed
> the same region accross multiple subjects).
Yes - Featquery will handle this for you if you select a first-level
FEAT directory and a standard space mask/seed.
> Also I was wondering if there is a way to get the threshold values
> of each
> voxel in the connectivity maps. (rendered_thresh_zstat files). I
> want to see
> how well a given voxel is correlated with other areas of the brain.
I think you want to start by looking at the unthresholded zstat maps
in the .feat/stats subdirectory, or the thresholded version of this -
thresh_zstat in the FEAT output directory. I would recommend that
you have a careful read through the FEAT manual.
Cheers, Steve.
>
> Thank you.
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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