Hi Mona, I don't understand your question. Only the mean will be removd from the time series, no drift term. One usually does not consider the hemodyamic response delay to be a drift term

On 3/2/2020 5:45 PM, Nasiriavanaki, Zahra wrote:

Hi

I wanted to follow up on this question and clarify it a little bit more.

My question is if the temporal drift (hemodynamic response delay) has been counted in considering that I used the preprocessed data as the input?

I deeply appreciate any help.

Thanks

Mona

On Feb 28, 2020, at 5:50 PM, Nasiriavanaki, Zahra <ZNASIRIAVANAKI@mgh.harvard.edu> wrote:

Hi Freesurferes

I have extracted timeseries from a task fMRI using the command below:

mri_segstats --i fmcpr.sm0.self.rh.nii.gz --slabel $subj rh rh.label --id 1 --avgwf-remove-mean --avgwf ./rh.txt

My question is: Is the temporal drift being counted in considering that I used preprocessed data as the input?

Thanks

Mona

Zahra (Mona) Nasiriavanaki

Postdoctoral Research Fellow

Martinos Center for Biomedical Imaging

Massachusetts General Hospital

149 13th Street, 149-2615

Charlestown, MA, USA, 02129
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