Thank you Christian,
It was actually a size problem. I have another question about
smoothing ICA maps.
I am trying to reproduce the method you used in DeLuca et al, 2006 in
neuroimage (experiment 4) all my individual PICA maps are smoothed in
the preprocessing step at 5 mm. There is however a smoothing step
done after registration into standard space. I tried to do that in
feat. It gave me garbage. How can I use FSL to smooth the PICA
components before doing the spatial correlation?
thanks again,
Paul
At 02:57 AM 5/11/2006, you wrote:
>Hi
>
>yes, this should work, provided you don't run out of memory. You can
>try and use avwsplit first, in order to convert to 3d images and then
>merge these - that way you can more closely monitor the mem
>consumption. How big are the individual files?
>
>cheers
>christian
>
>
>
>On 11 May 2006, at 06:21, Paul Geha wrote:
>
>>HI
>>
>>I am trying to merge 12 subjects each with 30 components obtained
>>from PICA into one single 4 D
>>file (360 components), in order to run avwcc only once later . I
>>used the command avwmerge on the
>>12 melodic_IC.nii.gz from the melodic output. I does not work;
>>it gives a segmentation fault.
>>
>>can I do this concatenation at all in FSL?
>>
>>thanks a lot
>>Paul
>
>--
> Christian F. Beckmann
> Oxford University Centre for Functional
> Magnetic Resonance Imaging of the Brain,
> John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
> Email: [log in to unmask] - http://www.fmrib.ox.ac.uk/~beckmann/
> Phone: +44(0)1865 222551 Fax: +44(0)1865 222717
Paul Geha, M.D.
Physiology Department
Northwestern University
303 E Chicago Ave, M5-666
Chicago, IL 60611
Tel: (312) 503-2886
Fax: (312) 503-5101
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