SIMEXP / niak

GNU Octave library for connectivity analysis in large fMRI datasets
http://niak.simexp-lab.org
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negative correlation artefacts in r-maps #353

Closed pbellec closed 6 years ago

pbellec commented 7 years ago

There are strange patterns of negative correlations in the correlation maps generated by the connectome pipeline. (1) #1 likely cause is scrubbing not taken into consideration. (2) assuming the problem is indeed scrubbing, then confound regression strategy for non-scrubbed volumes should be changed so that no artefacts are induced even if non-scrubbed volumes are used.