Re: [Freesurfer] selxavg-sess outputs

Yes, but don't use mkanalysis-sess.new. Are you not using version 5.X? doug

Yang Liu wrote:

Hi Doug,

Thank you for prompt reply. So I should remove '-gammafit', and add '-fir 4 24' is for mkanalysis-sess.new?

Yang

On Tue, Aug 9, 2011 at 11:42 AM, Douglas N Greve <greve@nmr.mgh.harvard.edu mailto:greve@nmr.mgh.harvard.edu> wrote:

If you want a time course, you should use an FIR model, something
like "-fir 4 24" to start the time window 4 sec before the
stimulus onset and stop it 20 sec after stimulus onset. Do not
include -gammafit.

doug

Yang Liu wrote:

    Hi all,

    I want to plot the hemodynamic response of a voxel after my
    analysis finishes. I hope I can get the hemodynamic response
    of each voxel for each session, so I can see the statistics by
    myself.

    My analysis.cfg is below:

    -gammafit 0 8
    -gammaexp 0.3
    -timewindow 40.0000
    -prestim 0
    -polyfit 2
    -TER 2.0000
    -autowhiten 40
    -nskip 0
    -fwhm 0
    -extreg mcextreg
    -nextreg 3
    -rescale 1000


    After I ran selxavg-sess, I got the following volumes: h0.nii,
    h0-offset.nii, h.nii, h-offset.nii, rstd.nii, rvar.nii.
    How can I get a response from these volumes?

    Yang


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MGH-NMR Center
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