Hi,
1/ -> yes. Per command line melodic.
2/ -> no. You may consider to clean-up your data prior to the group ICA
using FIX, for example.
3/ -> That will depend on your computing resources and the spatiotemporal
resolution of your data.
Cheers,
Andreas
Am 03.02.15 11:10 schrieb "cha" unter <[log in to unmask]>:
>Dear FSL users,
>
>I want to perform an ICA analysis to identify DMN networks and then to
>compare it between two groups.
>I have some questions about the procedure:
>1/ My data are already preprocessed but not smoothed and filtered. Is it
>possible to do not run the steps: "pre-stats" and "registration"?
>2/ Is it necessary to run a single subject analysis before the
>group-analysis? Is it better? for example the group-analysis would permit
>to identify the DMN and make a template of the DMN. In the same time, the
>single subject analysis would permit to select components and then we
>could compare each individual component with this template. Is it
>necessary to do this? Could we just identify the DMN with the group
>analysis and then perform directly the two sample t-test?
>3/ How long does it take to run an ICA analysis? I have 44 subjects.
>
>Thanks a lot,
>
>All the best,
>C.
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