Thanks so much Louis! This was exactly what I was looking for. The Hinds et al. (2009) paper also has this info.

On Thu, Jan 16, 2014 at 5:02 PM, Louis Nicholas Vinke < vinke@nmr.mgh.harvard.edu> wrote:

Hi Krista, I believe the v?.thresh labels are thresholded at p=0.8. This threshold is based on comparisons of actual and predicted V1 boundary with an independent dataset.

Relevant pub: https://surfer.nmr.mgh.harvard.edu/ftp/articles/ hinds2008accurate.pdf

-Louis

On Thu, 16 Jan 2014, krista kelly wrote:

Hi all,

...

Can anyone provide information regarding how v1.thresh.label and v2.thresh.label that are automatically implemented in FreeSurfer are thresholded?

Thanks! Krista

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