Use #1.
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
=====================
This e-mail contains CONFIDENTIAL INFORMATION which may contain PROTECTED
HEALTHCARE INFORMATION and may also be LEGALLY PRIVILEGED and which is
intended only for the use of the individual or entity named above. If the
reader of the e-mail is not the intended recipient or the employee or agent
responsible for delivering it to the intended recipient, you are hereby
notified that you are in possession of confidential and privileged
information. Any unauthorized use, disclosure, copying or the taking of any
action in reliance on the contents of this information is strictly
prohibited and may be unlawful. If you have received this e-mail
unintentionally, please immediately notify the sender via telephone at (773)
406-2464 or email.
On Mon, Jul 30, 2012 at 2:57 PM, Xinyi Ouyang <[log in to unmask]> wrote:
> Dear SPMers:
>
> I have a very beginner question. My fMRI data is acquired using the
> bottom-up interleaved slice sequence and the number of slice is 31. The
> slice sequence is [1:2:31 2:2:31], in the slice timing correction I used
> slice 31 as my reference slice(which acquired in the middle time of
> scanning). Now in the specify the 1st level I am confused with the two
> parameters. They are microtime resolution and microtime onset. Which one of
> the following is the most suitable one for my experiment,
>
> 1). Microtime resolution:31 Microtime onset: 16
> 2). Microtime resolution:31 Microtime onset: 31
> 3). Microtime resolution:16 Microtime onset: 1
>
> According to my understanding, I think the first one is the most reasonable
> parameters. Since I did the slice timing correction, the Microtime
> resolution should be the number of the slice which is 31. Then because my
> reference slice is 31 which is the middle one in the acquisition sequence so
> the microtime onset should be the corresponded time bin of this slice(31)
> which is 16. Is this right?
>
>
> Hope some experienced SPMers can help me figure this out. Many thanks.
>
> Best wishes.
> Xinyi
|