HI - the second-best option is to take a representative set from each
group of subjects (e.g. 20 total) and run tbss_2_reg on just them to
find the target and then copy this to "target" for running the whole
106 group.
Cheers.
On 10 Oct 2006, at 22:31, Jenny Wu wrote:
> Hi,
>
> Sorry for inundating the list with emails, but I have a question
> about selecting a target “most typical” image in TBSS. Because I
> have 106 FA images, aligning each FA image to every other one would
> take too long of a time to process. If I designate a target image,
> what do I loose from skipping the nonlinear registrations to every
> other image – is it a critical issue? What are factors to take
> into account when selecting a target image out of a group – age,
> gender, whole brain volume…?
>
> Thanks,
>
> Jenny
>
>
>
>
>
>
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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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