> On 6 May 2015, at 16:49, Douglas N Greve <gr...@nmr.mgh.harvard.edu> wrote: > > memory should not be a problem > > On 05/06/2015 08:33 AM, Bruce Fischl wrote: >> Hi Jane >> >> we don't really see much blurring of folding patterns with the >> high-dimensional spherical warp so you might as well use them all >> (although there might be issues with memory - perhaps Doug can comment if >> this is still true). >> >> cheers >> Bruce >> >> >> On Wed, 6 May 2015, Jane >> Garrison wrote: >> >>> Hi, >>> >>> I have a question about the utility of the make_average_subject command. >>> >>> I have a schizophrenia study with 115 subjects and am worried about using >>> the Freesurfer average brain, given that scz patients have distinct >>> morphological aspects to their brains. I am therefore considering making an >>> average brain from my subjects, but have read some old posts cautioning >>> against this, since an average brain taken across a large number may be too >>> indistinct to be of value. >>> >>> Is there a recommendation on this - should I produce an average across all >>> my subjects, or should I maybe use a small (20?) sample of my subject >>> brains to create an average? >>> >>> Thanks so much >>> >>> Jane. >>> _______________________________________________ >>> Freesurfer mailing list >>> Freesurfer@nmr.mgh.harvard.edu >>> https://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 >> >> > > -- > Douglas N. Greve, Ph.D. > MGH-NMR Center > gr...@nmr.mgh.harvard.edu > Phone Number: 617-724-2358 > Fax: 617-726-7422 > > Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting > FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 > www.nmr.mgh.harvard.edu/facility/filedrop/index.html > Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ > > _______________________________________________ > 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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