Thanks for the reply, Doug! Best, Feilong
On Wed, Mar 22, 2017 at 1:24 PM, Douglas Greve <gr...@nmr.mgh.harvard.edu> wrote: > I think the motion correction works a little better if done to a reference > inside each run, and there's probably less interpolation in the end > > On 3/20/17 11:04 AM, Feilong Ma wrote: > > Hi FreeSurfer Experts, > > I was reading the document of preproc-sess, and it seems -per-run is > recommended instead of -per-session. Here is the part: > >> -per-run >> Motion correct and register using the middle time point of each run. >> This is the option that you should use. >> -per-session >> Motion correct and register using the first time point of the first >> run. This is mainly for compatability with version 4. >> > > Is there a reason to preprocess each run separately? I know some people > motion correct and register all EPI volumes to the same reference EPI > volume, which also works well. > > Thanks, > Feilong > > > _______________________________________________ > Freesurfer mailing > listfreesur...@nmr.mgh.harvard.eduhttps://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > > _______________________________________________ > 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. > >
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