Hi,
There was actually a mistake in this post, the method below would give you
the scalars on the mean surface transformed into the native space, rather
than on the vertices from surfaces output on FIRST surfaces.
Cheers,
Brian
> Because of the vertex correspondance, you can actually just append the
> scalars to the native space surfaces. Given the available tools, the
> easiest way to achieve this is to transform the vertex-analysis surface
> back to native space.
>
> for firstflirt_xfm in *_t1_to_mni.mat ; do
> f=`basename firstflirt_xfm .mat`
> run_mesh_utils -m vertex_analysis_results.vtk --inverse -t
> $first_flirt_xfm -o ${f}_to_native.vtk
> done
>
> Where its loop around the transforms to mni space output by first_flirt.
> If interest there are also ways to output the 'aligned' surfaces that are
> used in the veretx analysis, so that you can visualize the vertex
> variation.
>
> cheers,
>
> Brian
>
>
>
>
>> Following a FIRST vertexwise analysis, is there any way to isolate the
>> significant voxels back in each subject's native space (i.e., similar to
>> what is done using tbss_deproject)? Maybe converting the mesh to a
>> volume
>> while preserving the statistics (if possible), then threshold the
>> volume,
>> and then use the inverse of the T1-std registration? Is there a way to
>> threshold the mesh itself to omit non-significant voxels?
>>
>>
>
>
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