>From using isxconcat-sess to concatenate all of my subjects together, the >command creates binary masks called masks.nii and mask.nii, masks.nii being >all of the binary masks for each subject. Is this what I would use with >--frame-mask?
Thanks, Sadie ________________________________ From: freesurfer-boun...@nmr.mgh.harvard.edu <freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of Douglas Greve <gr...@nmr.mgh.harvard.edu> Sent: Wednesday, July 5, 2017 7:28 PM To: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] Subject with missing fMRI data We don't have any tools to do imputation. It is possible to have a subject specific mask with the --frame-mask option to mri_glmfit. The frame mask must be the same size as the input (--y) with 1s and 0s to indicate whether a given voxel for a given subject should be included in the model. I've not been happy with this method as it can create some strange results as different voxels will now have different DOFs. On 6/29/17 8:49 AM, Sadie Marvel wrote: Hi List, I am currently doing a group analysis of 26 subjects, one of which has missing fMRI data where the signal cuts off through parts of the occipital and temporal lobes. I was wondering if freesurfer has any way of dealing with this, such as multiple imputation, or other methods of filling the missing data. Alternatively, is there a way to only use the portions of the brain that have data when doing mri_glmfit? Does freesurfer do this automatically? Thanks. _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu<mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer<https://urldefense.proofpoint.com/v2/url?u=https-3A__mail.nmr.mgh.harvard.edu_mailman_listinfo_freesurfer&d=DwMC-g&c=JeTkUgVztGMmhKYjxsy2rfoWYibK1YmxXez1G3oNStg&r=bOaERSxG_JqDNQmM_8K52LCjnCr_2F55jAz7ZN-9dqg&m=DhD2aaHH4v0l556v1tTQWGefdhjxGef9QZtInzhlGAw&s=bQIJi6_pIGgShFkxwNFbAaJNwv2UyXNY15PnOqVX3Jk&e=>
_______________________________________________ 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.
