Dear Douglas,

The comman line and terminal output show is this: [mtobia@localhost subjects_results_symptom]$ mris_apply_reg --src lh.map.mgh --trg lh.map.lh.fsaverage_sym.mgh \

--streg $SUBJECTS_DIR/s02_base/surf/lh.fsaverage_sym.sphere.reg

$FREESURFER_HOME/subjects/fsaverage_sym/surf/lh.sphere.reg ERROR: lh.map.mgh does not exist or is not readable by you

And also I have other 2 questions: 1) When I run left-right hemisphere paired t-test, can I add age as covariate? If use fsgd to add covariate, to this paired t-test analysis, how to make the fsgd table? 2) I want to reorganize the hemisphere from left-right to symptom-nosymptom according to body symptom side record and compare different between symptom hemisphere and nosymptom hemisphere. Can I use freesurfer to do it?

Thanks for your patient and help.

All best, Lanbo Wang

On Sun, Nov 5, 2017 at 1:27 PM, Douglas Greve greve@nmr.mgh.harvard.edu wrote:

Can you send the command line you are using and the full terminal output?

On 11/2/17 3:09 PM, lanbo Wang wrote:

Dear Freesurfer experts,

When I try run mris_apply_reg according to Xhemi: "the error is lh.map.mgh does not exist or is not readable by you" lh.map.mgh is made by which step?

Thank you in advance.

best, Lanbo

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