Hi All! 

Was using the gPPI toolbox with only a few issues (that have since been resolved), however, after running through most of my participants, I realised that at some point, some participants had this error (whilst others did not):

Valid Contrast
Valid Contrast
contrast image 1 : ...written con_0001.img
spm{T} image 1 : ...written spmT_0001.img

....
Moving Contrast Images
error moving contrast PPI_Neutral-vs-Rest

....

And this occurred with all my contrasts. I saw someone just recently had a similar issue (Dec15 2017 Nadine Gier) and that the spm_contrasts_gPPI.m was supposed to fix the error... However it simply added this:

Valid Contrast
Valid Contrast
Generate xCon
Generate xCon
Generate xCon
...
Generate Contrasts
contrast image 1 : ...written con_0001.img
spm{T} image 1 : ...written spmT_0001.img
...
Moving Contrast Images
error moving contrast PPI_Neutral-vs-Rest


Nothing was resolved, but simply "Generate xCon" was added to the output. 


Below is a sample participant who's output resulted in the above error. 
P.subject=['19531650']
P.directory=['/usr/local/fMRI_processed_data/MAY/FMRI_FACES_NONCONSCIOUS_ANALYSIS/gPPI_analysis/BP_MDD_HC_files/BP/19531650/000_data_archive/105_fMRI_gPPI_FACES-NONCONSCIOUS/GLM/'];
P.VOI=['/local/May/FMRI_FACES_CONSCIOUS_ANALYSIS/ROIs/L_Amyg/MNI_Amygdala_L_roi.nii'];
P.Region='LamygBP';
P.Estimate=1;
P.contrast=0;
P.extract='eig';
P.Tasks={'1' 'Neutral' 'Happy' 'Fear' 'Anger' 'Sad' 'Disgust'};
P.Weights=[];
P.analysis='psy';
P.method='cond';
P.CompContrasts=1;
P.Weighted=0;
P.Contrasts(1).left={'Neutral'};
P.Contrasts(1).right={'none'};
P.Contrasts(1).STAT='T';
P.Contrasts(1).Weighted=0;
P.Contrasts(1).MinEvents=5;
P.Contrasts(1).name='Neutral-vs-Rest';
P.Contrasts(2).left={'Happy'};
P.Contrasts(2).right={'none'};
P.Contrasts(2).STAT='T';
P.Contrasts(2).Weighted=0;
P.Contrasts(2).MinEvents=5;
P.Contrasts(2).name='Happy-vs-Rest';
P.Contrasts(3).left={'Fear'};
P.Contrasts(3).right={'none'};
P.Contrasts(3).STAT='T';
P.Contrasts(3).Weighted=0;
P.Contrasts(3).MinEvents=5;
P.Contrasts(3).name='Fear-vs-Rest';
P.Contrasts(4).left={'Anger'};
P.Contrasts(4).right={'none'};
P.Contrasts(4).STAT='T';
P.Contrasts(4).Weighted=0;
P.Contrasts(4).MinEvents=5;
P.Contrasts(4).name='Anger-vs-Rest';
P.Contrasts(5).left={'Sad'};
P.Contrasts(5).right={'none'};
P.Contrasts(5).STAT='T';
P.Contrasts(5).Weighted=0;
P.Contrasts(5).MinEvents=5;
P.Contrasts(5).name='Sad-vs-Rest';
P.Contrasts(6).left={'Disgust'};
P.Contrasts(6).right={'none'};
P.Contrasts(6).STAT='T';
P.Contrasts(6).Weighted=0;
P.Contrasts(6).MinEvents=5;
P.Contrasts(6).name='Disgust-vs-Rest';
P.Contrasts(7).left={'Anger' 'Disgust' 'Fear'};
P.Contrasts(7).right={'none'};
P.Contrasts(7).STAT='T';
P.Contrasts(7).Weighted=0;
P.Contrasts(7).MinEvents=5;
P.Contrasts(7).name='Threat-vs-Rest';
P.Contrasts(8).left={'Happy'};
P.Contrasts(8).right={'Neutral'};
P.Contrasts(8).STAT='T';
P.Contrasts(8).Weighted=0;
P.Contrasts(8).MinEvents=5;
P.Contrasts(8).name='Happy-vs-Neutral';
P.Contrasts(9).left={'Fear'};
P.Contrasts(9).right={'Neutral'};
P.Contrasts(9).STAT='T';
P.Contrasts(9).Weighted=0;
P.Contrasts(9).MinEvents=5;
P.Contrasts(9).name='Fear-vs-Neutral';
P.Contrasts(10).left={'Anger'};
P.Contrasts(10).right={'Neutral'};
P.Contrasts(10).STAT='T';
P.Contrasts(10).Weighted=0;
P.Contrasts(10).MinEvents=5;
P.Contrasts(10).name='Anger-vs-Neutral';
P.Contrasts(11).left={'Sad'};
P.Contrasts(11).right={'Neutral'};
P.Contrasts(11).STAT='T';
P.Contrasts(11).Weighted=0;
P.Contrasts(11).MinEvents=5;
P.Contrasts(11).name='Sad-vs-Neutral';
P.Contrasts(12).left={'Disgust'};
P.Contrasts(12).right={'Neutral'};
P.Contrasts(12).STAT='T';
P.Contrasts(12).Weighted=0;
P.Contrasts(12).MinEvents=5;
P.Contrasts(12).name='Disgust-vs-Neutral';
P.Contrasts(13).left={'Anger' 'Disgust' 'Fear'};
P.Contrasts(13).right={'Neutral'};
P.Contrasts(13).STAT='T';
P.Contrasts(13).Weighted=0;
P.Contrasts(13).MinEvents=5;
P.Contrasts(13).name='Threat-vs-Neutral';


Any ideas of how to resolve the issue?
Many thanks in advance!


Cheers,
May

Hi May,

That's an odd one. I thought I fixed all of the bugs related to moving files.

Can you rename the attached file to: spm_contrasts_PPI.m and replace your current version. This won't fix the issue, but should help narrow down where there error is actually occurring in the code. The code was built with try/catch statements, which are good in getting the program to continue onto the next subject, but bad for troubleshooting.

Best,
Donald

Hi Donald!

Thanks for that! This is what it spits out with the updated contrast file:
...
Valid Contrast
Generate xCon
...
Generate Contrasts
contrast image 1 : ...written con_0001.img
spm{T} image 1 : ...written spmT_0001.img
...
Moving Contrast Images
error moving contrast when contrast already exists PPI_Neutral-vs-Rest
error moving spmT/F when contrast already exists PPI_Neutral-vs-Rest


These are contrasts written for a 'nonconscious-faces' tasks, where I similarly have a 'conscious-faces' task, however they are in separate folders and have undergone separate analyses in a different location, so I'm not sure how the gPPI script would be picking up that a PPI_Neutral-vs-Rest (etc..) contrast exists in a separate folder to the one I am running analyses for these participants. 

I've found if I change the name to "Neutral_vs_Rest" the gPPI analysis will run... however is there a way to run it where I can run a gPPI for two different tasks (that have the same contrast names) for the same person?
Many thanks for your help!

I'm not sure how the names are getting crossed.

What is the contents of:
/usr/local/fMRI_processed_data/MAY/FMRI_FACES_NONCONSCIOUS_ANALYSIS/gPPI_analysis/BP_MDD_HC_files/BP/19531650/000_data_archive/105_fMRI_gPPI_FACES-NONCONSCIOUS/GLM/PPI_LamygBP?

Best,
Donald