Slices 1,2, 12, 23, or 24 would be appropriate choices. Since you've
set your microtime onset to 12, you want to pick the 12th slice
acquired for slice time correction. This is probably slice 12,23, or
24 depending on if you had a sequential acquisition (12) or
interleaved odd collected first (23) or interleaved even collected
first (24).
You will want to enter the actual slice number, not the number of the
temporal order that it was acquired.
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 Tue, Aug 7, 2012 at 2:33 AM, Kazuhiro Yamada <[log in to unmask]> wrote:
> Dear Gabor
>
> Thank you very much for your advice.
> As you say "24" or "1" seems appropriate for the reference slice, but after some thought and also following advice from more experienced people I have chosen "12" as the reference slice. This is also related to the microtime onset, as you say. I have set the microtime resolution at "24" (because I have 24 slices per scan), and the microtime onset at "12", as these are also recommended values in SPM 8 manual p. 243.
> Any comment from you as well as from other experts would be greatly appreciated.
> With many thanks,
>
> Kazuhiro Yamada
> Physiology, Univ. of Oita Faculty of Medicine
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