External Email - Use Caution

Hi Dr Greve, yes exactly this is what I did. i user mri_corg and I got the reg.lta file. Then I used mris_preproc with the flag --iv but this output an error message that the flags --fsgd, paired-diff and --iv doesn't work together. This is the reason for my question.

I appreciate any suggestion.

If you have not sampled the PET data onto the surface, you will need to run mri_coreg to create a registration to the anatomical. Then use can use mris_preproc with the --iv option (listing each subject with a different --iv). Run mris_preproc with --help to get examples

On 12/06/2018 12:31 PM, john Anderson wrote:

> External Email - Use Caution

> Hi Dr Greve,

>> I tried to follow this web page

>> https://surfer.nmr.mgh.harvard.edu/fswiki/PairedAnalysis

>> This tutorial seems to be for cortical thickness data. After sampling

>> each individual's surface onto the average surface, how can I modify

>> this command to fit PET data mris_preproc --target fsaverage --hemi

>> lh \

>> --meas thickness --out lh.paired-diff.thickness.mgh \

>> --fsgd pairs.fsgd --paired-diff

>> Thanks for any help!