Hello Freesurfer Experts, I keep running into the following error (see below) when selxavg3-sess gets to my third subject. I am assuming this is because this subject does not have all of the conditions modeled (that is, this particular subject does not have any incorrect responses). Is there a way to model an empty condition to get around this? I want a general contrast of Incorrect > Correct, but some subjects do not make any errors and therefore would not have this condition in their paradigm files.
Any advice would be greatly appreciated. #@# CC_003_recon ############################### /Volumes/VA_Imaging/Projects/dmiller/COGCON/FSFAST/CC_003_recon ------------------------- $Id: fast_selxavg3.m,v 1.100 2011/03/02 16:14:38 greve Exp $ /Applications/freesurfer/fsfast/toolbox/fast_selxavg3.m /Applications/freesurfer/fsfast/toolbox/fast_ldanaflac.m /Applications/freesurfer-5.3/matlab/MRIread.m ------------------------- outtop = /Volumes/VA_Imaging/Projects/dmiller/COGCON/FSFAST Extension format = nii.gz INFO: key PerSession unrecognized, line 6, skipping INFO: key ApplySubCortMask unrecognized, line 12, skipping 1 Correct-v-Incorrect.mat 2 Incorrect-v-base.mat nruns = 4 autostimdur = outanadir = /Volumes/VA_Imaging/Projects/dmiller/COGCON/FSFAST/CC_003_recon/Bold1/correct.sm15.mni305 Found 57600/537168 (10.7) voxels in mask Creating Design Matrix ... creation time = 0.008 sec DoMCFit = 1 ntptot = 740, nX = 27, DOF = 713 Saving X matrix to /Volumes/VA_Imaging/Projects/dmiller/COGCON/FSFAST/CC_003_recon/Bold1/correct.sm15.mni305/Xtmp.mat ??? Error using ==> svd Input to SVD must not contain NaN or Inf. Error in ==> cond at 39 s = svd(A); Error in ==> fast_selxavg3 at 254 XCond = cond(XtX); >> ------------------------------------------ ERROR: fast_selxavg3() failed\n Thanks, Danielle -- Ph.D. Program in Behavioral Neuroscience Boston University School of Medicine L-815 72 E. Concord St Boston, MA 02118 VA Boston Healthcare System Jamaica Plain Memory Disorders Research Center 150 South Huntington Ave D11-103 Boston, MA 02130 OFFICE:(857) 364-2130
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