[pymvpa] question about cross-subject analysis

John Magnotti john.magnotti at gmail.com
Wed Jan 18 17:28:56 UTC 2012

On Wed, Jan 18, 2012 at 11:26 AM, Yaroslav Halchenko
<debian at onerussian.com> wrote:
> as was pointed before -- it all depends on how much of "spatially
> fine structure"  you need and where is the region of your interest.
> and you would not know unless you try ;-)
agreed. I just wanted to making sure I wasn't committing serious
fraud, I can live with a disclaimer that the precision of the
technique is limited to the precision of the spatial alignment.

Thanks for all the quick replies,


> On Wed, 18 Jan 2012, John Magnotti wrote:
>> > 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.
>> the main issue I'm worried about is that if I flatten and then
>> vstack() timeseries from multiple participants will there be enough
>> consistency across subjects to make the columns (voxel at a given
>> time) meaingful.
> --
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