Aser,

If you you put your custom sequence into SPM, you can get the graphs above. The key variables are:

SPM.Sess.U.u, time variable is 0:TR/#oftimebins:TR/#oftimebins*size(SPM.Sess.U.u,1)

SPM.xX.X, time variable is 0:TR:TR*size(SPM.xX.X,1), this is the convolved data., this is the stick function or stimulus on times

** Sess will need to be index for each run (e.g. Sess(1).U)

** U will need to be indexed for each condition (e.g. U(1).u, U(2).u)

Hope this helps.

Best Regards, Donald McLaren
=================
D.G. McLaren, Ph.D.
Research Fellow, Department of Neurology, Massachusetts General Hospital and
Harvard Medical School
Postdoctoral Research Fellow, GRECC, Bedford VA
Website: http://www.martinos.org/~mclaren
Office: (773) 406-2464
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On Sun, Sep 15, 2013 at 6:14 PM, Aser A <fmri2013@gmail.com> wrote:

Hi all,

Using the output from OptSeq, is there a possible ( easy ^u^ ) way of plotting in the same graph the presentation of stimuli with their convolution?

So basically, I created my design using OptSeq. To make it nicer, I want to plot this. I am not aware of freesufer and I use SPM. In SPM it just shows the convolved stimuli without showing sticks of the stimuli.

I have attached a picture taken from the genetic program that helps creating or optimizing fMRI designs just to show you what I mean or I want.

I have also attached an excel file contains the output from OptSeq.

Thanks

Aser

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