help > RE: Loading conn files in SPM
Sep 14, 2018  02:09 PM | laurentcohen - ICM
RE: Loading conn files in SPM
Hello
I have the same problem exactly.
I exported the filtered data from CONN and entered them in a SPM model. During estimation I received the message:

Failed 'Model estimation'
Error using spm_est_non_sphericity (line 208)
Please check your data: There are no significant voxels.
In file "/home/imen/github/spm12/spm_est_non_sphericity.m" (v6913), function "spm_est_non_sphericity" at line 208.
In file "/home/imen/github/spm12/spm_spm.m" (v7120), function "spm_spm" at line 433.
In file "/home/imen/github/spm12/config/spm_run_fmri_est.m" (v7057), function "spm_run_fmri_est" at line 34.

The 2015 thread has been interrupted before a solution was found... Do you have any suggestion? 

Thank you very much in advance

Laurent
Originally posted by Alfonso Nieto-Castanon:
Hi Chaleece,

This indicates that SPM finds no significant "any condition/task effects" in your data. There are several potential reasons, my best guess is that this is related to the explicit masking of the analyses combined with the band-pass filtering of your original data (by default SPM will look for "in-brain" voxels by comparing their average BOLD signal to the average global BOLD signal; since your data is band-pass filtered the average BOLD signal is always 0). I would suggest to change in your script the line  "spm.stats.fmri_spec.mthresh=.8" to ""spm.stats.fmri_spec.mthresh=-inf" in order to skip this implicit masking altogether. Please let me know if that does not seem to be the issue here. 

Best
Alfonso

Originally posted by Chaleece Sandberg:
Hello again,
I hate to be a bother, but I have now run into another problem when I try to actually run the GLM in SPM:

Running 'Model estimation'

SPM12: spm_spm (v6015) 11:58:27 - 06/08/2015
========================================================================
SPM12: spm_est_non_sphericity (v6015) 11:58:30 - 06/08/2015
========================================================================
Chunk 97/97 : ...processing
Failed 'Model estimation'
Error using spm_est_non_sphericity (line 196)
Please check your data: There are no significant voxels.
In file "C:\Users\Public\Documents\spm12\spm_est_non_sphericity.m" (v6015), function "spm_est_non_sphericity" at line 196.
In file "C:\Users\Public\Documents\spm12\spm_spm.m" (v6015), function "spm_spm" at line 418.
In file "C:\Users\Public\Documents\spm12\config\spm_run_fmri_est.m" (v5809), function "spm_run_fmri_est" at line 33.
The following modules did not run:
Failed: Model estimation

Does this mean that the Denoising step somehow reduced any significance? I didn't include the conditions as confounds for denoising. I am attaching my my batch for spm, if that helps. Would you like the conn.mat file?

Threaded View

TitleAuthorDate
Roger Beaty Jun 12, 2014
Leah Fleming Nov 23, 2016
kito24 Feb 7, 2017
Leah Fleming Feb 8, 2017
Alfonso Nieto-Castanon Jun 12, 2014
Chaleece Sandberg Jul 31, 2015
Alfonso Nieto-Castanon Aug 2, 2015
Chaleece Sandberg Aug 5, 2015
Nole Hiebert Aug 23, 2018
Alfonso Nieto-Castanon Aug 5, 2015
Chaleece Sandberg Aug 6, 2015
Chaleece Sandberg Aug 6, 2015
Alfonso Nieto-Castanon Aug 6, 2015
RE: Loading conn files in SPM
laurentcohen Sep 14, 2018
Chaleece Sandberg Oct 2, 2015
Alfonso Nieto-Castanon Oct 8, 2015
kito24 Feb 8, 2017
Ines Del Cerro Nov 9, 2017
Patrick McConnell Nov 3, 2017
Roger Beaty Jan 26, 2015
Alfonso Nieto-Castanon Jan 27, 2015
Roger Beaty Jan 27, 2015
Alfonso Nieto-Castanon Jan 28, 2015
laurel morris Mar 11, 2016
Alfonso Nieto-Castanon Mar 14, 2016
Isabel Berwian Nov 28, 2016
Anila D'Mello Nov 10, 2015
Roger Beaty Jun 14, 2014