Hi Marie, Ah yes, thanks, that was indeed the problem! Strangely though, the Max for that cluster is t=2.488 initially, above the default t=2 Min value in the QDEC visualisation settings! But after pressing the FindClusters button, Max becomes t=1.779 and so the Min probably needs to be lowered in order for the entire cluster (not just its Max vertex) to become visible. Or am I misunderstanding something here?...
Tudor On 2 February 2014 20:45, Marie Schaer <marie.sch...@unige.ch> wrote: > > Hi Tudor, > > Seems to me that it could be just a display issue, as you didn't adjust > the visualisation threshold (you have min = 2), whereas you run your Monte > Carlo with a threshold of 0.05 (i.e. 1.3), and your cluster seem to be just > in between. > > Hope it helps, > > Marie > > > On Feb 2, 2014, at 10:55 AM, Tudor Popescu <tud...@gmail.com> wrote: > > > Dear Freesurfer experts, > > > > I ran a QDEC analysis for structural data and found, after Monte-Carlo > correction@0.05, one significant cluster, annotated as "postcentral" (see > screenshot attached). The stats associated with it are displayed in the > terminal, however the statistical map on the template brain is blank. > > > > Also, when I press the "Find Cluster and Go To Max" button, I receive an > error that no stats can be generated for that cluster. > > > > Not sure if it's relevant, but my dependent variables of interest in > this analysis were thickness and local gyrification index (lGI). It seems > I'm getting the above problem only when lGI is the DV, and whether or not > there is a group factor among the categorical predictors. I do have, > however, lGI analyses where the significant cluster shows up fine both on > the template and in the terminal window. > > > > Can anyone help? Many thanks in advance! > > > > Best wishes, > > Tudor > > <2014.02.02, 18-17-31.png>_______________________________________________ > > 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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