Hi freesurfers,<br><br>We are using the segmentation of the corpus callosum into the Anterior, Mid Anterior, Central, Mid Posterior, and Posterior sections that are labeled in the freesurfer aparc+aseg file.  However, some of the labeling is not correct in subjects post-stroke, so we need to manually draw some of the regions.  What are the divisions based on?  Is there a reference paper that describes the segmentation in more detail?  Thank you!<br>

<br>Kelsi<br>