Re: [Freesurfer] resting state motion censoring

Currently there is no way to do this. But it might not be hard to add. If I don't get back in a couple of weeks, send me a reminder.

On 02/14/2018 12:13 PM, Adam Martersteck wrote:

Just a quick follow-up question, For FD/DVARS or other "censoring" criteria -- using -tpexclusion worked great for surface based analysis with mkanalsysis and selxavg3. Is there a way to do this for seed-to-seed analysis (fcseedcor)?

Thanks!

On Thu, Jan 25, 2018 at 4:00 PM, Douglas N Greve <greve@nmr.mgh.harvard.edu mailto:greve@nmr.mgh.harvard.edu> wrote:

Yes,you need a time point exclusion file (-tpexclude filename
option to
mkanalysis-sess). Run mkanalysis with -help to get more info on how to
create it.

On 01/25/2018 04:43 PM, Adam Martersteck wrote:
> Hi Freesurer experts,
>
> I’m looking to censor (drop volumes) from my resting state fMRI time
> series that violate a predetermined motion and signal threshold (FD
> and DVARS). I've already determined which volumes violate X and Y
> criteria.
>
> Is there a way to to tell FS to "ignore" these time points in the
> analysis such as in preproc-sess or mkanalysis-sess?
>
> If there is not and if I were to drop the volumes directly from
the 4D
> file before starting any pre-processing and analysis  – would
that be
> a problem for finding and regressing the auto-correlation in the
time
> series?
>
> Thanks!
> Adam
>
>
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