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help > Voxel-toVoxel analysis within a mask
Jan 30, 2018 07:01 PM | Bengi Baran - Harvard Medical school
Voxel-toVoxel analysis within a mask
Hi Alfonso,
I am interested in running a voxel-to-voxel analysis within a region of interest. Specifically, I'd like to compute the average correlation between a given voxel and the rest of the voxels within a mask; sort of a local coherence measure. The ILC analysis seems to do this within a kernel, is it possible to define a custom mask instead of that? My mask is highly unlikely to include anticorrelated regions so it shouldn't matter that much if I use average or RMS.
Thank you very much in advance,
Bengi
I am interested in running a voxel-to-voxel analysis within a region of interest. Specifically, I'd like to compute the average correlation between a given voxel and the rest of the voxels within a mask; sort of a local coherence measure. The ILC analysis seems to do this within a kernel, is it possible to define a custom mask instead of that? My mask is highly unlikely to include anticorrelated regions so it shouldn't matter that much if I use average or RMS.
Thank you very much in advance,
Bengi