Hello All,
I have been trying to implement the dual regression script on resting-bold data. Previous posts suggest that the group-level effects and randomise output should present in the output folder as "stage 3" images. However, the output folder created has only stage 1 & 2 files; no error messages were displayed.
The command used was:
dual_regression ica_197_concat++.gica/groupmelodic.ica/melodic_IC 1 HC197_concat_glm/HC197_concat_age.mat HC197_concat_glm/HC197_concat_age.con 500 HC197_concat_age_dual `cat ica_197_concat++.gica/.filelist`
The .con and .mat files were created with the Glm tool with 197 inputs and two EVS/contrasts-- a group mean and an age correlation.
Any advice would be greatly appreciated.
Cheers,
Ted
PS. More generally: is there a description of the outputs from the dual reg script available? I did not find any on prior posts.
Hi - yes probably the best thing to use is "dual-regression", with your subject-specific performance measures included in the final cross-subject GLM that is applied to the dualreg outputs. Email me if you want to try out the dualreg beta script.
Cheers.
On 9 Aug 2010, at 15:25, Ted Satterthwaite wrote:
Hello All,
I have a fairly basic question. We are interested in using MELODIC to relate resting-state connectivity to out-of-scanner individual differences measures (cognitive & personality tests, etc). We ran MELODIC on our resting bold data using multi-session temporal concatenation. As expected, several robust networks were returned (DMN etc).
However, it is not clear to me how one might relate these components to an individual difference measure. It seems what is necessary is for there to be a summary statistics for each component for each individual subject (i.e., a measure of how strong a component was for a given subject). Initially I thought that this would be the subjects/sessions output, but reading posts on this suggests otherwise.
Any guidance would be greatly appreciated-- thanks for your time.
Cheers,
Ted
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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)
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