Oops. Thank you for the prompt answer, Rik.
respectfully yours....
Greig
At 08:03 21.07.99 +0000, you wrote:
>PS Pending the conclusions from the reference slice discussion, I forgot
>to point out that, by selecting slice 7, you have in fact chosen the middle
>slice in space, where you may have been intending to choose the middle slice
>in time, ie slice 13 or slice 2.
>
> > Greig -
> >
> > > A very basic request for verification (stemming from a deep-seated
> respect
> > > for authority figures...) about slice timing in SPM99b:
> > >
> > > I have a 14 slice, interleaved acquisition, TR 3secs. Applied the
> > > 'user-specified' option. Entered slice order as 1 3 5 7 9 11 13 2 4 6
> 8 10
> > > 12 14 and specified the reference slice as 7 (I'm opting for the
> mid-slice
> > > having read the discussion below).
> > >
> > > Did I 'do right'? No error messages produced.
> >
> > The slices are numbered from 1=bottom to 14=top (according to Analyze
> format).
> > The left-to-right order of these numbers in your vector corresponds to the
> > temporal order in which the slices were acquired.
> >
> > If these conditions are met, then you have indeed 'done right'.
>
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>
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