Hi,
I need to write a script to pull out number of voxels activated in a given ROI for a group of subjects. I have done the estimation and results etc to build contrast images etc. I presume the con images just hold the z score (???) for a given location. It looks like the spmT images are just coordinates?
So one, can someone tell me the correct files to use to do the analysis I would like to? And second, a more general question, is there a description somewhere of what information each file holds etc that is produced at Results time. I can piece together information from here and there, but it would be nice to have a concise description of all the files from one locale.
Third, with respect to estimating a model. I would like to potentially do an apriori mask of my collected brain. I could go in and just change all of my img files and mask explicity each one (ie zero out the non-interesting portions), however, any hints on where in the estimation code I would insert a masking to zero out the portions of the brain that I am not interested in estimating. That is, if we could we would have acquired a smaller region of volume during the scanning, but I can affect this by just masking my data before estimation. ( I want to do shapes that are different than available with SVC )
Thanks,
Robert
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Robert C. Welsh, PhD
Research Investigator
Department of Radiology
University of Michigan
(734) - 764 - 2412 (fax)
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