Dear All,
it is not without a certain irony that the error message pasted below,
to which I made several non-useful comments a few days ago, now happens
to me. I wanted to share one observation with you that may shed some
light on this issue, although not to me: if I load in the preprocessed
files, I get this error message:
> Warning: Please check your data: There are no significant voxels.
>> In spm_spm at 815
> In spm_run_fmri_est at 33
> In matlabbatch\private\cfg_run_cm at 29
> In cfg_util>local_runcj at 1477
> In cfg_util at 803
> In cfg_ui>MenuFileRun_Callback at 1218
> In gui_mainfcn at 96
> In cfg_ui at 53
> Failed 'Model estimation'
> Reference to non-existent field 'Vbeta'.
> In file "B:\Util\spm8\config\spm_run_fmri_est.m" (v3691), function "spm_run_fmri_est" at line 100.
>
> The following modules did not run:
> Failed: Model estimation
However, if I run the same model on the very same, but unsmoothed files,
it runs through all right. The smoothing width itself is irrelevant, I
tried 1, 9 and 15. Just for the heck of it, I also tried changing the
output format of the smoothed files from the original INT16 to float32
or 64, with no effect. Interestingly, it does run if I change the format
to UINT8 (not that this makes sense, but as a bug hunter...). In the
resulting mask of the unsmoothed files, I get streaky artefacts of zero
value, and in the T-maps of the UINT8 data, large parts of the brain are
missing in the first place (even more so than is missing from the mask,
which is actually lacking the streaky artefacts). It would be great if
someone could use that information to actually track down the problem. I
am happy to share the maps.
Cheers,
Marko
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PD Dr. med. Marko Wilke
Facharzt für Kinder- und Jugendmedizin
Leiter, Experimentelle Pädiatrische Neurobildgebung
Universitäts-Kinderklinik
Abt. III (Neuropädiatrie)
Marko Wilke, MD, PhD
Pediatrician
Head, Experimental Pediatric Neuroimaging
University Children's Hospital
Dept. III (Pediatric Neurology)
Hoppe-Seyler-Str. 1
D - 72076 Tübingen, Germany
Tel. +49 7071 29-83416
Fax +49 7071 29-5473
[log in to unmask]
http://www.medizin.uni-tuebingen.de/kinder/epn
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