Hello everyone,
I have a problem, typical one I guess, however I was not able to
find an answer on FSL list. I have got a very large activation (because I
have a very large sample of 40 subjects) which goes in Z up to 22. If, using
easythresh, I cut activations at Z=3.1 than I get only one cluster
consisting of 26346 voxels and spanning through the entire brain. This is
quite useless. Is there any way of getting some valuable information out of
this? Namely SPM users have nice Anatomical Automatic Labeling program
(http://www.cyceron.fr/freeware/) which is capable of spitting the
statistics about how much of the given brain region is being covered by the
activation (the template with names of brain regions is taken from ALL map
provided with MRIcro). Is there anything comparable available for FSL
results. If not how shell I report my data having one huge significant blob
? Rising the Z threshold is not an option as some, otherwise significant
regions, would disappear, besides what rationale I would give to such an
operation? Going through individual ROIs would be on the other hand
extremely tedious.
I would appreciate your help very much
Best regards
Michal Kuniecki PhD
Department of Psychophysiology
Institute of Psychology
Jagiellonian University, Krakow, Poland
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