Hi,
If the design is temporally consistent across sessions then you can
use the tensor model instead of temporak concatenation. If it's not,
then presumably there is no one single-session temporal model which is
appropriate for all sessions, and so neither approach will trivially
allow you to do the 'poststats' relating ICA components to a model.
Cheers, Steve.
On 25 Jun 2008, at 11:36, Jiansong Xu User wrote:
> Dear All:
>
> I have posted this question before and did not get response. Hope I
> have
> luck this time.
>
> I'm playing with Melodic. I would like to know how to set up the
> poststat in
> the Melodic gui.
>
> The task is block design. I have 21 subjects and each subject has 3
> sessions. The sequence of the 3 session is different for each
> subject. So,
> I used Multi-session temporal concatenation. Melodic spit out 50
> components.
> I want to assess the relations between components and block
> conditions, and
> relations between components and contrast of block conditions. So,
> I guess
> I need to set up poststat. Any suggestions are appreciated.
>
>
> Best
>
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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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