Hi Jenni Thanks a lot for your reply.
Following the descriptions on FsTutorial/Visualization (https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/Visualization) the 'color scale bar' indicates area coded in blue == cortical thickness of Female < that of Male (eg. 1mm <2mm), area coded in red == cortical thickness of Female < that of Male (eg. 3mm of Female >2mm of Male). Could you please tell me whether my understanding is correct or not? Best wishes Rhuang On Wednesday 09 May 2007 13:38, Jenni Pacheco wrote: > Hi Rhuang, > > On that particular page the color bar is showing the sigificance > (-log10(p)) for the group difference in that example. However, if you were > displaying a cortical thickness map for an individual subject the color bar > would then be showing the cortical thickness values (in mm). > > It is showing the negative values to indicate the direction of the effect. > Because of the way this analysis was set up the blue regions show areas > where older subjects are significantly thinner than younger subjects and > the red regions show areas where younger subjects are significantly thinner > than older subjects. > > Jenni > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Ruiwang Huang > Sent: Wednesday, May 09, 2007 4:20 AM > To: freesurfer@nmr.mgh.harvard.edu > Subject: [Freesurfer] Does 'color scale bar' show the cortical thickness > or[-log10(p)]? > > Dear All, > > I am puzzled by the meaning of 'color scale bar', which appears in the > first > > figure of the FsTutorial/Visualization > (https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/Visualization) > > Could you please let me know the meaning of colorbar? > Does the 'color scale bar' show the cortical thickness or [-log10(p)]? > Why the colorbar indicates the positive and negative value in the first > figure? > > Many thanks in advance > > Rhuang > > _______________________________________________ > 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
