Hi - once you come to the randomise stage at the end then you can look up (on the FSL wiki and the email list archives) general queries about modelling with randomise - this isn't specific to dual-regression.Cheers.On 11 Feb 2013, at 08:09, Matthew Hyett wrote:Dear FSL Users,
I am trying to find documentation on appropriate design.mat and design.con structure for a dual regression. I have 3 groups (N=48) with resting state data that has been processed in Melodic. At this stage, I am not looking at any covariates or group comparisons and simply wanted to inspect the individual spatial + temporal profiles. As suggested in a previous post, dual regression may be a good option for doing this and I have looked at possible ways to construct the files with little success.
The randomise function appears to allow the user to specify a "-1" when treating the data as one group, which is, in short, what I was hoping to do. Is this a valid shortcut in dual_regression? Or will I need to specify the design.mat/.con files arbitrarily?
Cheers,
Matt
---------------------------------------------------------------------------
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
---------------------------------------------------------------------------