Hi SPM users, I have a problem with the coregistration step failed and a point of the functional image does not match to a point in the structural image. (image attached) I did all the preprocessing steps including the reorientation of the structural and functional images according to the AC-PC axe. I realized during this process in the matlab main window appears the following message, I check the structural image and the origin correspond to the AC point. Thanks, Best Regards, Carolina Running 'Display Image' Done 'Display Image' Done ??? Attempt to reference field of non-structure array. Error in ==> spm_image at 213 tmp = spm_get_space([st.vols{1}.fname ',' num2str(st.vols{1}.n)]); ??? Error while evaluating uicontrol Callback