[pymvpa] Combine the fMRI data with other data in the pattern analysis?

[Yaroslav Halchenko]

Hi Nynke,

quick answer (Michael might correct me): to add variable -- yes, but to
make it present as a covariate for all the searchlights -- I do not
think so... but should be implementable -- just would need some kind of
proxy for QueryEngineInterface (in 0.6) which would complement
each query for the neighboring voxels with the indexes of those
additional features.

On Mon, 14 Mar 2011, Nynke van der Laan wrote:

> Hello,
> I have a question concerning searchlight analyses: Is there a build in
> possibility in pyMVPA to add an extra variable to the pattern
> analysis? E.g., if you have for each sample, next to the neuroimaging
> data also skin conductance measures (1 per sample/scan). Would it be
> possible to add this variable as a covariate to be able to see whether
> this variable can improve the prediction accuracy? So when you run an
> analysis with only the functional scans, and one with both the skin
> conductance and the functional scans, you can see whether that adds
> any information.
> Thanks in advance for answering my question!
> Best regards,
> Nynke

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