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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