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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