[pymvpa] question about detrend and zscore

[Yaroslav Halchenko]

heh heh ... hard to say anything definite ;) detrend/zscore should not
introduce spurious correlations, so it must be in the data somehow...
may be motion was too strongly correlated with the design? (you could
load motion correction parameters and just use them to see if there is a
correlation)

may be you could also provide actual data?

with smth like (before any zscore/detrend)

Hamster(dataset=dataset.selectFeatures([0,1]), summary=dataset.summary()).dump('/tmp/2pymvpa.nii.gz')

(may be increase number of selected features ;))

and send that /tmp/2pymvpa.nii.gz file


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