Dear FreeSurfer list, When reporting coordinates of significant clusters found with Qdec, should one report 1) the Talairach coordinates displayed immediately after running the MonteCarlo correction (which I imagine are the center of gravity (CoG) coordinates?!) or 2) the max vertex Talairach coordinates displayed after using the "Find clusters and go to max" button?
The two sets of coordinates are close for a given cluster, but never quite the same, and I don;t know which one to report. Thank you! --Francesco On 31 March 2014 20:20, Francesco Puccettone <francesco.puccett...@gmail.com > wrote: > I see, makes sense! I had a second question, which I repeat below. > > When reporting significant clusters, should one refer to the cluster by > 1) its annotation label, e.g. "sig differences were found in the > precentral gyrus", > 2) its max vertex as displayed after using the "Find clusters and go to > max" button, e.g. "significant differences were found in a cluster whose > maximum vertex was at (10,20,30)" , or > 3) by its center of gravity coordinates as displayed (I think!) > immediately after running the MonteCarlo correction, e.g. "significant > differences were found in a cluster whose CoG was at (11,21,31)"? > > > On 31 March 2014 17:43, Douglas N Greve <gr...@nmr.mgh.harvard.edu> wrote: > >> >> This is just the way that the interface was programmed. It was fairly >> easy to add a button to run the correction, more difficult to pull that >> information back into the interface in a reasonable way. I agree that it >> makes using the interface less intuitive: once you get a button to >> press, you come to expect that everything else will be done for you. >> Unfortunately, we don't have the resources to be able to do that. You'll >> have to look at the text file generated by QDEC >> doug >> >> >> On 03/31/2014 09:05 AM, Francesco Puccettone wrote: >> > Hello, >> > >> > I see that after having qdec apply MonteCarlo correction to a certain >> > contrast, the CWP cluster-wise probability is displayed. Those values, >> > however, are not displayed when the "Find clusters and go to max" >> > button is used, either before or after correction. WHy is that, when >> > it seems that the CWP statistic makes sense for all 3 "stages" >> > (max-vertex pre-correction, mean-cluster post-correction, max-vertex >> > post-correction)? >> > >> > Thank you! >> > >> > --Francesco >> > >> > >> > _______________________________________________ >> > 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. >> >> >
_______________________________________________ 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.
