Thanks for your reply. Unfortunately, that was only a
partial answer to my question. I had setup a second
level analysis and SPM says can't get default analyze
orientation, assuming flipped. This is where i had
problem, because i moved my data between different
computers and the defaults.analyze.flip was not
correct in the new computer.
I have figured out that by looking at the
SPM.xY.VY.mat of the corresponding SPM.mat, i can
figure out what was the assumption during estimation.
I then respecified the corresponding models and
--- Cyril Pernet <[log in to unmask]> wrote:
> Hi krishna
> > Is there anyway of knowing whether in SPM2 stats
> > estimation stage, the images have been assumed to
> > flipped or not depending on the
> > ? I realized that this parameter was set wrongly
> and i
> > changed it after some second level analysis was
> > so some of the results are flipped. I am trying to
> > work back which were those.
> Changing in the middle of an analysis .. tricky.
> I guess the main
> thing is that spm will have flipped or not your
> images after the
> normalization depending on your flip parameter -
> then if you use the
> display button, in the parameters box the dimensions
> are smthg like 2
> 2 2 or -2 2 2 ; obviously -2 doesn't mean that you
> have a negative
> size but that there is a flip here (data in radio
> convention then
> Hope this helps
> The University of Edinburgh is a charitable body,
> registered in
> Scotland, with registration number SC005336.
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