You need to specify a duration unless your using FIR, in which case
you need to specify the length of the window to look for the response.
The default duration is 0, so it will look for very short blips in
your timecourse.
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 Wed, Nov 7, 2012 at 12:33 PM, Michael Bui <[log in to unmask]> wrote:
> Dear SPM experts,
>
> Please help me to plot the activation map. I have 128 smoothed fMRI, 16
> slices/volume, TR = 2.68 and stimuli is:
> Time Onset
> 10 0
> 30 0
> 50 1
> 70 0
> 90 0
> 110 1
> 130 1
> 150 0
> 170 1
> 190 0
> 210 0
> 230 1
> 250 1
> 270 0
> 290 1
>
> I used "Specify 1st-level" and choose "Onsets" values as "50 110 170 230 250
> 290". Then I follow the prompt of SPM8, estimate and inference, accept the
> default p-value (0.05), FWE but the result has no activation in the brain.
> Could you please give me any suggestion to produce the activation map?
>
> Thank you very much for your help,
> With best wishes,
> Michael Bui
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