The following pair are consistent:
lh.BA.thresh BA44 GrayVol
rh.BA.thresh BA44 GrayVol

The following pair are inconsistent:
lh.BA BA44 GrayVol
rh.BA BA44 GrayVol
Other measurements in the lh.BA and rh.BA atlases may also be inconsistent.

Thanks,

Jacob
________________________________________
From: freesurfer-boun...@nmr.mgh.harvard.edu 
<freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of Douglas N Greve 
<gr...@nmr.mgh.harvard.edu>
Sent: 02 February 2017 16:40
To: freesurfer@nmr.mgh.harvard.edu
Subject: Re: [Freesurfer] possible atlas error to report

Sorry, which labels are consistent and which are inconsistent?


On 02/02/2017 02:52 PM, Levman, Jacob wrote:
>
> Hi there,
>
>
> I've been conducting an asymmetry analysis based on FreeSurfer
> measurements. There are regions of the brain with known left-right
> asymmetry such as BA44 which exhibits strong leftward asymmetry (the
> left side is bigger than the right). This is accurately reflected when
> you compare the BA44 GrayVol measurement from lh.BA.thresh to
> rh.BA.thresh. However, in the lh.BA and rh.BA results, the BA44
> GrayVol measurements consistently indicate a rightward asymmetry
> (right side larger than the left side) though this conflicts with
> known findings in the literature for this region of the brain and is
> the opposite pattern to that produced in lh.BA.thresh and rh.BA.thresh.
>
>
> This indicates that the lh.BA and rh.BA results may be left-right
> inverted in BA44 and possibly in other regions as well.
>
>
> Thanks,
>
>
> Jacob
>
>
> ​
>
>
>
>
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