Generally, you do not smooth it as averaging over the ROI is effectively a type of smoothing. If you were to smooth prior to the averaging, you'd get one area smearing into another.

On 6/28/2021 12:57 PM, Ryan Bell, Ph.D. wrote:

External Email - Use Caution

Dear Freesurfer Experts,

I am wondering whether the extracted ROI volume data acquired when using the command aparcstats2table needs to be smoothed?  I performed surface smoothing using surf2surf for cortical thickness data, but cannot find a way to smooth the volume data listed in aparcstats2table.  Is it recommended that I do not perform smoothing?

Thank You,

Ryan

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Ryan Patrick Bell, Ph.D. Research Analyst, Department of Psychiatry & Behavioral Sciences 905 W. Main St., Suite 24-E

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