[pymvpa] question about cross-subject analysis

[Yaroslav Halchenko]

> This sometimes works surprisingly well and is fairly straightforward.

yeap -- but I thought that the main question behind was on how could we
account for areas where nice (linear) alignment is difficult so
that union (pretty much your scenario) of voxels across subjects would
not be ideal either.

On Wed, 18 Jan 2012, J.A. Etzel wrote:

> To run multiple-subjects tests I've usually converted everyone's
> functional images to a standard space first (MNI or whatever), then
> subsetted to only have voxels with non-zero variance in all
> subjects.

> This sometimes works surprisingly well and is fairly straightforward.

> Jo
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