Hi,
I'm afraid I can't tell exactly what your experimental design is,
sorry. Are you saying that you analysed subsets of individual FMRI
runs?
Cheers.
On 9 Sep 2009, at 04:54, Hongnyu Yang wrote:
> Hi FSL experts,
>
> Our study have two different trials, and there are three phases
> during every
> trial. Because we are very interested in Phase 3 of the trials, so
> we divided it
> into four parts, and analyse them seperately. However, we found that
> the
> design efficiency for the four parts was very bad. Especially the
> first and the
> third parts of the Phase 3, the percent changes need to reach more
> than 10%
> to get activation. So, we want to know, do we really need to analyse
> the
> Phase 3 as a whole? If we want to get its time course response, what
> do we
> need to do? I really appreciate your kind response.
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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