Dear FSL experts,
I have some questions on the general usage of Melodic. Sorry if some of this has been asked before but I was not sure of what search term to use so was not able to find any previous discussion.
1. In the Melodic GUI under the Post-Stats tab, there is an option to set the threshold for IC maps. As the calculation of IC took quite a while on my PC, may I know how I can reuse previous results but with a different threshold and to generate a new report?
2. I have seen in this mailing list and also the av example in the FSL course (e.g. http://fsl.fmrib.ox.ac.uk/fslcourse/lectures/practicals/melodic/index.html) where there are multiple (and small) thresholded spatial maps per row in the report. In my case the thresholded spatial maps are stacked vertically (essentially one big image per row) so I need to scroll up and down to view all of the slices. This makes it very difficult to have a global view of the behaviours. Is there a setting I need to change so my report can look the same?
3. My final question concerns the interpretation of the IC time courses. In one post in the archive someone commented about reading off the time of the stimulus from the time course curve. Do I take it the (a) only the time courses which are periodic are meaningful for on/off tasks, i.e. whereby there's a cue for subject to perform a task or to relax, and (b) the period of the time course corresponds to the period of the on/off cycle? So far the time courses have been anything but obviously periodic.
Thanks very much!
Cheers,
Louis.
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