Thanks so much Bruce. I also posted yesterday asking about whether it was possible to get LGI values for a spherical ROI based on a particular mni coordinate (I’ve been using Qdec so far for group analysis but can’t work out how to draw the ROI nor how to pull the LGI values. Would you have any advice?
Thanks again, Jane. Dr Jane Garrison Director of Studies, Psychological and Behavioural Sciences Robinson College, University of Cambridge Behavioural and Clinical Neuroscience Institute (BCNI) Department of Psychology University of Cambridge Downing Street Cambridge CB2 3EB jr...@cam.ac.uk 01223 764428 > On 6 May 2015, at 13:33, Bruce Fischl <fis...@nmr.mgh.harvard.edu> 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 > > > 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. > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
