help > gPPI with parametric modulator gives error
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Aug 1, 2017 03:08 PM | James Keidel
gPPI with parametric modulator gives error
hi
I have a simple model (2 regressors) that works fine with gPPI when I do not add a parametric modulator. However, when I do add a modulator to one of the conditions and then try to run gPPI I just get an "Estimation Failed" error, so I really don't know what is going wrong. Here is the setup of the struct for PPPI.m:
P = struct();
P.subject = sprintf('%s',subs{i});
P.directory = sprintf('~/fMRI/afni/videos/%s/PPI/',subs{i});
P.VOI = sprintf('/Users/pssc08/fMRI/afni/videos_for_publication/masks/BIG_21.nii');
P.region = 'BIG_21';
P.analysis = 'psy';
P.method = 'cond';
P.CompContrasts = 0;
P.ConcatR = 1;
P.Estimate = 1;
P.equalroi = 0;
P.Contrast = 1;
P.FLmask = 1;
P.Weighted = 0;
Any idea why the parametric modulator causes the estimation to fail? Thanks.
James
I have a simple model (2 regressors) that works fine with gPPI when I do not add a parametric modulator. However, when I do add a modulator to one of the conditions and then try to run gPPI I just get an "Estimation Failed" error, so I really don't know what is going wrong. Here is the setup of the struct for PPPI.m:
P = struct();
P.subject = sprintf('%s',subs{i});
P.directory = sprintf('~/fMRI/afni/videos/%s/PPI/',subs{i});
P.VOI = sprintf('/Users/pssc08/fMRI/afni/videos_for_publication/masks/BIG_21.nii');
P.region = 'BIG_21';
P.analysis = 'psy';
P.method = 'cond';
P.CompContrasts = 0;
P.ConcatR = 1;
P.Estimate = 1;
P.equalroi = 0;
P.Contrast = 1;
P.FLmask = 1;
P.Weighted = 0;
Any idea why the parametric modulator causes the estimation to fail? Thanks.
James
Aug 1, 2017 03:08 PM | Donald McLaren
RE: gPPI with parametric modulator gives erro
Hi James,
Could you attach the screen output the email, the input parameter file, and the SPM.mat files for the models with and without parametric regressors.
I need to be able to narrow down where the failure might be happening.
Best,
Donald
Could you attach the screen output the email, the input parameter file, and the SPM.mat files for the models with and without parametric regressors.
I need to be able to narrow down where the failure might be happening.
Best,
Donald