John,

You have a 6 seconds TR.

Also, for slice timing, your TR will be 6 seconds with a TA of 3-(3/N) where is N is the number of slices.

Best Regards, Donald McLaren
=================
D.G. McLaren, Ph.D.
Postdoctoral Research Fellow, GRECC, Bedford VA
Research Fellow, Department of Neurology, Massachusetts General Hospital and Harvard Medical School
Office: (773) 406-2464
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On Mon, Mar 7, 2011 at 12:26 PM, John Fredy <[log in to unmask]> wrote:

Hello all, I adquired 80 volumes in blocks using clustered adquisition: 3 seconds of silence and 3 seconds of MRI noise. During the silence period I present the stimuli. How can I process the data? Exists any additional consideration in the processing?

Thanks in advance

John Ochoa