Dear all, I am trying (unsuccessfully) to display some SPM T-images generated in SPM5 in Caret 5.5. Here's what I am doing:
The T-images are in nifti1 format (with .img and .hdr extensions), and the original functional data were converted to nifti via the DICOM import function in SPM5. The images are normalized (and resliced) to the SPM5 MNI T1.nii template (voxel size 2x2x2, dimensions: 91x109x91, origin: 46 64 37). In Caret 5.5, I follow the steps indicated in the Caret_Tutorial_Sep22.pdf section 5.1. (and using the Caret Tutorial Sept06 data set). 1- I open the fMRI mapping template Spec file, select all, then save under a new name, and load scenes. 2- Attributes: Map volumes to surface, then add my SPM t-maps and set thresholds. 3- Map to spec file with atlas: As output I select my newly created spec file, and then I select the SPM2 space, and the corresponding SPM2 left hem atlas, then repeat those steps with the SPM2 right hem atlas. I accept the default settings on the next page. 4- The I name my metric files (left, right) in accrodance with the left/right aspects of the 'surface family'. 5- As Mapping Algorithm, I accept the 'enclosing voxel' default, then I press Finish and the computing starts... At the end of the number crunching, I get a little warning sound and in the command line window it reads: 'QEventDispatcherUNIX::unregisterTimer: invalid argument' Regardless, I next load the Scene No 4 (FLAT etc..), and then open the two metric files I have created. I then also load the SPM2 fiducial coord files. I select Metric as the Primary Overlay, and select L-to-L R-to-R matching. With great anticipation, I select one of my metric files, but no cigar: I don't see any surface overlays whatsoever. Any idea where I am going wrong? Many thanks for any advice! Best wishes, Tobias. -- Tobias Egner, Ph.D. Cognitive Neurology and Alzheimer's Disease Center Feinberg School of Medicine Northwestern University 320 East Superior, Searle 11 Chicago, IL 60611 Ph: (+1) 312 503 1749 Fax: (+1) 312 908 8789
