Hi Doug, I have a few queries regarding FWHM used in multiple comparisons correction program mri_glmfit-sim
My data at present is analysed in FSL & Freesurfer following the procedure in the link http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/FslFeatFreeSurfer. No volume based smoothing at single subject level (in FSL) is done at the moment, and a 4 mm surface level smoothing was applied during mris_preproc stage. 1. I have noticed that mri_glmfit computed a FWHM of 8.578114 using residuals. How exactly is this value computed? 2. I understand that the cached simulation used in mri_glmfit-sim is selected based on the above computed smoothness value. Is this fine, or should I override? If I also smooth the data at the single subject level on the volume (in FSL), can I still follow the above process? Many thanks, Mariam. _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
