Thank you for your suggestion Dr. Harms. It seems that it is the only way to compare subcortical networks at this moment.
On Mon, Mar 2, 2015 at 12:21 PM, Harms, Michael <mha...@wustl.edu> wrote: > > Not sure if this will help your purposes, but the > "HCP500-PTN" (Parcellation+Timeseries+Netmats) distribution includes the > following: > > melodic_IC_sum.nii.gz: ICA spatial maps projected from the surface into > the volume, for reporting purposes. MNI152 space. > > I don't think we have any group ICA maps derived originally in the > volume space since the group ICA was done using the FIX-cleaned CIFTI time > series as inputs. > > cheers, > -MH > > -- > Michael Harms, Ph.D. > ----------------------------------------------------------- > Conte Center for the Neuroscience of Mental Disorders > Washington University School of Medicine > Department of Psychiatry, Box 8134 > 660 South Euclid Ave. Tel: 314-747-6173 > St. Louis, MO 63110 Email: mha...@wustl.edu > > From: Yizhou Ma <maxxx...@umn.edu> > Date: Sunday, March 1, 2015 10:23 PM > To: Matt Glasser <glass...@wusm.wustl.edu> > > Cc: "hcp-users@humanconnectome.org" <hcp-users@humanconnectome.org> > Subject: Re: [HCP-Users] projecting from volume to R440 template > (subcortical and cerebellum) > > Thank you for your reply Dr. Glasser. I've read this recommendation > elsewhere on the forum and your point is well taken. Yet in our case the > purpose is a bit different. We are not trying to do any analysis but to > compare the HCP ICA maps with classical maps that have been generated in > the volumetric space. Although this may not be accurate, it'll offer us > some insight into the HCP maps. > > On Sun, Mar 1, 2015 at 10:09 PM, Glasser, Matthew <glass...@wusm.wustl.edu > > wrote: > >> I would recommend mapping your individual subject data onto individual >> subject surfaces and then registering on the surface. Volume to surface >> mapping onto a group average surface from a group average volume is not >> particularly accurate in comparison. Once you average cortical data in the >> volume, you lose the ability to do accurate spatial localization to >> cortical areas. Instead data can be easily mapped onto locations >> centimeters away in 2D from the correct location on the folded cortical >> sheet. Also, group average surfaces are very blurry in many cortical >> regions because different people have different folding patterns that >> cannot be registered (e.g. some people can have two gyri where others have >> only one). Thus, it’s really better to do your cortical analysis on the >> surface to begin with, as we do in the HCP with CIFTI. >> >> Peace, >> >> Matt. >> >> From: Yizhou Ma <maxxx...@umn.edu> >> Date: Sunday, March 1, 2015 at 9:27 PM >> To: Timothy Coalson <tsc...@mst.edu> >> Cc: "hcp-users@humanconnectome.org" <hcp-users@humanconnectome.org> >> Subject: Re: [HCP-Users] projecting from volume to R440 template >> (subcortical and cerebellum) >> >> Hi, >> >> I am still looking forward to getting help on this issue. Is an " >> Atlas_ROIs.2.nii.gz" or similar files provided for volume to surface >> mapping onto R440 group template? If not, will there be any in the future? >> >> Thanks, >> Cherry >> >> _______________________________________________ >> HCP-Users mailing list >> HCP-Users@humanconnectome.org >> http://lists.humanconnectome.org/mailman/listinfo/hcp-users >> >> >> ------------------------------ >> >> The materials in this message are private and may contain Protected >> Healthcare Information or other information of a sensitive nature. If you >> are not the intended recipient, be advised that any unauthorized use, >> disclosure, copying or the taking of any action in reliance on the contents >> of this information is strictly prohibited. If you have received this email >> in error, please immediately notify the sender via telephone or return mail. >> > > _______________________________________________ > HCP-Users mailing list > HCP-Users@humanconnectome.org > http://lists.humanconnectome.org/mailman/listinfo/hcp-users > > > ------------------------------ > > The materials in this message are private and may contain Protected > Healthcare Information or other information of a sensitive nature. If you > are not the intended recipient, be advised that any unauthorized use, > disclosure, copying or the taking of any action in reliance on the contents > of this information is strictly prohibited. If you have received this email > in error, please immediately notify the sender via telephone or return mail. > _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
