You don't have to specify a threshold at all. In that case it will 
average over the entire structural ROI. What you have below will average 
only over the positive values. What about the current stream is not 
streamlined? Or, how could it be improved?

doug



Adam Nitenson wrote:
> Hello Freesurfers,
>
>      I am currently running ROI analyses (dACC) and want to plot the
> timecourse of hemodynamic responses to a cognitive task (2
> conditions) in a group of subjects. I have been using func2roi
> commands such as
>
> func2roi-sess -roidef lh_dACC -analysis RM_correct_error -anatlabel
> lh.dACC -maskcontrast error_vs_correct -maskthresh 0.000000001 -masktail
> pos -maskframe 5 -maskmap sig -sf
> /autofs/space/ventzl_036/users/RespMon12C/subject_lists/caitlin_SZerrorcorrect.txt
> -d /autofs/space/ventzl_036/users/RespMon12C/subjects
>
> and then roisummary to generate charts from which I create a hemodynamic
> curve through data manipulation.
>
>     I was recently informed that there should be a way through which I
> could automatically plot such a hemodynamic curve, and that this
> method might not require a designated threshold as func2roi does (as
> we want any activation in the ROI to be considered). Is there any way
> to create a more automatic, streamlined hemodynamic response curve, or
> are func2roi and roisummary the standard means of doing this?
>
> Thanks,
>
>
> Adam Nitenson, B.S.
> Brain Genomics Lab
> Massachusetts General Hospital
> _______________________________________________
> Freesurfer mailing list
> Freesurfer@nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>
>
>   

-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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