Hi Maria to get the overall average you would need to weight each area by how big it is. Probably easier to use mris_anatomical_stats -l lh.cortex.label
cheers Bruce cheers Bruce On Thu, 17 Dec 2015, Maria Kharitonova wrote: > Hi, in response to the average thickness measure (see below). In > ?h.aparc.stats, I see a variable ThickAvg, is that it? And then to get the > average thickness across the *entire* cortex, I average across the couple > of dozen regions that it provides? > > Thanks! > Maria > >> >> >> Message: 7 >> Date: Fri, 11 Dec 2015 13:49:23 -0500 >> From: Douglas N Greve <gr...@nmr.mgh.harvard.edu> >> Subject: Re: [Freesurfer] average cortical thickness measure? >> To: freesurfer@nmr.mgh.harvard.edu >> Message-ID: <566b1ab3.9090...@nmr.mgh.harvard.edu> >> Content-Type: text/plain; charset=windows-1252; format=flowed >> >> In ?h.aparc.stats, you'll find a line like >> >> # Measure Cortex, MeanThickness, Mean Thickness, 2.40617, mm >> >> You'll have to get the value for each hemi and compute the mean >> >> >> On 12/11/2015 01:38 PM, Maria Kharitonova wrote: >>> I know that the aseg atlas provides a number of voume measures >>> (e.g. EstimatedTotalIntraCranialVol, TotalGrayVol), but is there a >>> variable for an average cortical thickness? I?d like to see if >>> thickness in some of the regions is associated with a variable of >>> interest over and above an overall main effect, so would like to >>> control for the average thickness, but can?t figure out a good way to >>> do that. >>> >>> Thanks! >>> Maria >>> >>> ? >>> Maria Kharitonova, PhD >>> Research Assistant Professor >>> Department of Medical Social Sciences >>> Northwestern University Feinberg School of Medicine >>> 625 N. Michigan Ave, Suite 2700 >>> Chicago, IL 60611 >>> Phone: (312) 503-6503 >>> Email: maria.khariton...@northwestern.edu >>> <mailto:maria.khariton...@northwestern.edu> >>> >>> >>> >>> _______________________________________________ >>> 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 > > > _______________________________________________ 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.
