Dear SPMers,
I would like to return to the problem of the error message "There are no significant voxels".
I have use checkreg to check all my input images. Apparently, they are all right.
I have also checked by other means whether there are any NaN voxels in the original or in the normalised images, but no NaN was detected.
Then I have explicitly masked the images before processing, in order to avoid possible disturbing information, but the same error message appears again.
The following are the details of the problem:
SPM5: spm_spm (v$Rev: 946 $) 16:38:20 - 13/05/2009
========================================================================
Initialising parameters : ...computingWarning: Returning NaN for out of range arguments
> In spm_invFcdf at 107
In spm_s ...done
Plane 1/19 , block 1/1 : ...done
Plane 2/19 , block 1/1 : ...done
Plane 3/19 , block 1/1 : ...done
Plane 4/19 , block 1/1 : ...done
Plane 5/19 , block 1/1 : ...done
Plane 6/19 , block 1/1 : ...done
Plane 7/19 , block 1/1 : ...done
Plane 8/19 , block 1/1 : ...done
Plane 9/19 , block 1/1 : ...done
Plane 10/19 , block 1/1 : ...done
Plane 11/19 , block 1/1 : ...done
Plane 12/19 , block 1/1 : ...done
Plane 13/19 , block 1/1 : ...done
Plane 14/19 , block 1/1 : ...done
Plane 15/19 , block 1/1 : ...done
Plane 16/19 , block 1/1 : ...done
Plane 17/19 , block 1/1 : ...done
Plane 18/19 , block 1/1 : ...done
Plane 19/19 , block 1/1 : ...done
??? Error using ==> spm_spm at 861
Please check your data: There are no significant voxels.
Error in ==> spm_spm at 299
spm_spm(SPM);
??? Error while evaluating uicontrol Callback
Anybody has an idea about what is going on?
Thank you again for any comments,
Neus
-----Message d'origine-----
De : MCLAREN, Donald [mailto:[log in to unmask]]
Envoyé : mercredi 6 mai 2009 21:37
À : MIRO BERNIE Neus
Objet : Re: [SPM] error message "no significant voxels" and baboon brain
Check all the images that are input into the model. The error you
describe suggests that there are no voxels that are non-zero in all
participants. If the data is a timecourse, check each timepoint as
well.
All this can be done with checkreg.
On Wed, May 6, 2009 at 10:54 AM, MIRO BERNIE Neus
<[log in to unmask]> wrote:
> Dear all,
>
>
>
> I have just began working with SPM in baboon.
>
> I have managed to coregister and normalise baboon PET images to my own
> template. But, after designing a matrix for statistical analyses it appears
> the error message "no significant voxels".
>
>
>
> By what I have learned by browsing in this forum, I guess the problem may be
> related to the space definition, so I have two questions:
>
> One: may this error be related to the space in which SPM works?? That is MNI
> (so human) versus dimensions of the baboon brain, which is smaller and so
> may leave some pixels devoid of information.
>
> Next question is: how could I define a new working space and, also, is it
> possible to change the human brain by a baboon brain in the results window
> -and how-? I know there is some available MR atlas for baboon SPM analyses,
> but I have no idea about how to implement it in SPM.
>
>
>
> If someone has an idea about these questions I would appreciate any comment
> on them.
>
> Thank you so much in advance,
>
>
>
> Neus
>
>
--
Best Regards, Donald McLaren
=====================
D.G. McLaren
University of Wisconsin - Madison
Neuroscience Training Program
Office: (608) 265-9672
Lab: (608) 256-1901 ext 12914
=====================
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