Hi Surfers: 
    We have been coming 
across several gray matter regions that are not included within the pial
 surface (red line) when it should be (e.g., very anterior parts of the 
temporal lobe). From my understanding of similar posts on the forum, it 
seems that there isn't a way to add this region to the pial surface so 
that the missing brain matter is included. We have tried using the clone
 tool to fill in this region, as per the tutorial and have experimented 
with this tool using the tutorial data. I followed the steps in the 
tutorial but could not observe any changes when the middle button was 
selected. Does anyone have any ideas on how to troubleshoot this 
issue? Can someone please explain to me why this is not possible? Also 
how does Freesurfer determine what regions to include within the pial 
surface? If there is a way that has been developed recently, please 
enlighten me. 

-Jing                                                                           
  
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