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:

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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

-----------------------------------------------------------------------------------------------

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

Durham, NC 27701

Phone: (919) 681-3495

Email: ryan.bell@duke.edu

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