Hi - if you ran featquery at group-level then the featquery output file
mean_mask_ts.txt should give you the mean first-level COPE values within
your standard-space mask across subjects - I think that is what you are
On Tue, 27 Jan 2004, Anda van Stegeren wrote:
> Hi Stephen,
> One additional question: I found the max_cope1_ts.txt file. But I cannot find out if this is what I need.
> What I am looking for are the MEAN activation values per individual session. I entered the cope*.feat directories of the copes i am looking at (4 cope directories in my case).
> I get a REPORT with mean values for the PE's I asked for.
> If I look at the max_cope1_ts.txt file, I think it should be possible to calculate the MEAN value which should end as the same value as mentioned in the Report.
> But if I calculate the MEAN, it is not the same.
> How do these .txt files and the REPORT relate ? is it maybe the MAXIMAL activation and not the MEAN activation per subject (per entered lower level directory).
> And if so: is there a way to get the individual mean activation values ?
> Drs. Anda van Stegeren,
> University of Amsterdam
> Department of Clinical Psychology
> Roetersstraat 15
> 1018 WB Amsterdam
> The Netherlands
> tel. ++ 31 20 525 6799
> fax. ++31 20 639 1369
> E-mail: [log in to unmask]
> -----Original Message-----
> From: Stephen Smith [ mailto:[log in to unmask]]
> Sent: vrijdag 12 december 2003 13:56
> To: [log in to unmask]
> Subject: Re: [FSL] Featquery Individual Values
> Hi - I think what you want is the values of the first-level copes at a
> given position in the gfeat output. These values are the
> filtered_func_data in the <>.gfeat/cope*.feat directory, so
> max_cope1_ts.txt should contain what you want I think?
> On Thu, 11 Dec 2003, Anda van Stegeren wrote:
> > Hi there,
> > I used Featquery for an estimation of Mean Values in a mask/ROI and entered
> > 4 Higher Level .gfeat directories.
> > As output I beautifully received the MEAN values for the 4 directories as
> > GROUP mean, and for the specified copes.
> > I would like to have the individual values for the specified copes and not
> > only group means. There is a file in the Featquery Output dir with a list
> > of numbers, that seem to be related to the number of subjects/individuals,
> > but if I calculate means here by hand, it is not even near the MEAN value I
> > officially get in the output .txt file.
> > Is this 'individual' information hidden somewhere or do I have to do
> > something completely different here ?
> > thanks,
> > Anda van Stegeren
> Stephen M. Smith DPhil
> Associate Director, FMRIB and Analysis Research Coordinator
> Oxford University Centre for Functional MRI of the Brain
> John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
> +44 (0) 1865 222726 (fax 222717)
> [log in to unmask] http://www.fmrib.ox.ac.uk/~steve
Stephen M. Smith DPhil
Associate Director, FMRIB and Analysis Research Coordinator
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve