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Hi Maedeh,

The human cerebral cortex is a highly folded sheet of neurons the thickness of which varies between 1 and 4.5 mm, with an overall average of approximately 2.5 mm (1–3). Regional variations in the cortical thickness can be quite large. For example, Brodmann’s area 3 on the posterior bank of the central sulcus is among the thinnest of cortical regions, with an average thickness of less than 2 mm, whereas Brodmann’s area 4 on the anterior bank is one of the thickest regions, frequently exceeding 4 mm. Interestingly, the distribution of the thickness is not uniform by layer, nor is the variation in the thickness of the cortical layers proportional to the variation in the total thickness.

Regards, Bellamy

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On Sat, Sep 1, 2018 at 5:37 PM Bruce Fischl fischl@nmr.mgh.harvard.edu wrote:

Hi Maedeh

we do compute volume/thickness/surface area etc... and tabulate them by parcel in files in the stats subdir (e.g. aparc.stats). I'm not sure what you mean by the second part of your question. How would this define the edge in the brain network?

cheers Bruce

On Sat, 1 Sep 2018, Maedeh Khalilian wrote:

...

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Dear Freesurfer Experts; I have a question, are there any ways in FreeSurfer to estimate the gray

matter volume or cortical

...

thickness of each region after parcellation, in order to define the

edges in the brain network?

...

Kind regards, Maedeh,

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