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Dear Geon-Ho, Have you preprocessed all of your data in the exact same way? If you are doing left/right comparisons and flipped your images, this has to be done by explicitly shuffling the voxels around and not by just editing the orientation of the images as the model estimation expects voxel-by-voxel correspondence. Best regards, Guillaume. On 28/10/2019 08:42, Geon-Ho Jahng wrote: > Dear Expert, > After setting the "Factorial design specification" and running the > batch, I got the following error message: > Failed 'Factorial design specification' > error: spm_check_orientations (line 65) > The orientations etc must be identical for this procedure. > In file "E:\jeongyeong\0_tools\spm12\spm_check_orientations.m" (v6894), > function "spm_check_orientations" at line 65. > In file "E:\jeongyeong\0_tools\spm12\config\spm_run_factorial_design.m" > (v6219), function "spm_run_factorial_design" at line 677. > > I double-check all GMV images to see orientations using Check_Reg and > all images look the same orientation. I used Display option to see any > differences of GMV images and found that the voxel size was *1.5* 1.5 > 1.5 for some images, but *-1.5* 1.5 1.5 for others. > > Could anyone help me solve this issue? > Thank you in advance. > Geon-Ho > > -- > *Geon-Ho Jahng, Ph.D.* > *Professor of Radiology* > *President of Korean Society of Medical Physics* > Kyung Hee University Hospital at Gangdong > College of Medicine, Kyung-Hee University > 892, Dongnam-ro, Gangdong-gu, > Seoul 05278, South Korea > TEL: 82-2-440-6187 > FAX:82-2-440-6932 > Email: [log in to unmask] <mailto:[log in to unmask]> -- Guillaume Flandin, PhD Wellcome Centre for Human Neuroimaging UCL Queen Square Institute of Neurology London WC1N 3BG