Dear Bruce,

Now, I change the standard atlas to avg152T1.nii.gz which was included in the FSL and make a mask of superior frontal gyrus  (Harvard-Oxford Cortical Structural Atlas). I can map the ROI-mask to the fsaverage surface to create an fsaverage-ROI surface overlay. But when I map one subject thickness data to the fsaverage subject  using the following command:

  mri_surf2surf --s s12129 --trgsubject fsaverage --hemi lh --sval s12129/surf/rh.thickness --tval ~/Desktop/mask/rh.thickness.fsaverage.mgh --reshape

it said:

 Reading source surface reg /Users/wangkangcheng/Desktop/dataplus_60/s12129/surf/lh.sphere.reg
Loading source data
ERROR: dimension inconsistency in source data
       Number of surface vertices = 146027
       Number of value vertices = 145656 

How could solve this problem?

Thank you  

Wang Kangcheng

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