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Hi Selene, I am not quite sure what you are doing with your contrasts. You have 4 conditions per subject/session, plus movement parameters and your basis function is HRF only, if I am right? It does not make sense to me to test single regressors from your movement parameters. I don't know whether this is related to the original problem, but perhaps it is. Volkmar On Mon, 7 May 2007, Selene Cansino wrote: > Thank you Volkmar, > > I though you had forgotten my problem. I am sending you my batch files again. > By the way, do you know how I can change the speye(n) hiding field parameter? > According to the following suggestion: > > > "1. You can specify the hidden field SPM.xX.W to be speye(n), where n is the > number of scans (for a one-sample t-test) (only when SPM.xX.W is not > specified is it estimated, which is what entails estimation of the > nonsphericity SPM.xVi via voxels pooled from the first pass). See spm_spm.m > for more details." > > Best regards, > > Selene > > ----- Original Message ----- From: "Selene Cansino" <[log in to unmask]> > To: "Volkmar Glauche" <[log in to unmask]> > Sent: Thursday, April 12, 2007 4:37 PM > Subject: Re: [SPM] Different results between individual and multiple-subjects > first level designs > > >> Hi Volkmar, >> >> Here are my batch files, please let me know if you also need the spm.mat >> files, I think I can set up a ftp/htp server so you can download them. >> >> Thank you in advance for your help, >> >> Selene >> >> ----- Original Message ----- From: "Volkmar Glauche" >> <[log in to unmask]> >> To: "Selene Cansino" <[log in to unmask]> >> Sent: Wednesday, April 11, 2007 7:29 AM >> Subject: Re: [SPM] Different results between individual and >> multiple-subjects first level designs >> >> >> > I don't think I need the SPM.mat file, I would like to have a look at the >> > batch file you used to create it. If you have access to an ftp/http >> > server, >> > you may upload the SPM.mat there and send me the link. >> > >> > Volkmar >> > >> > On Tue, 10 Apr 2007, Selene Cansino wrote: >> > >> > > Dear Matt and Volkmar, >> > > >> > > I am afraid the multiple subject spm.mat file is huge and even >> > > compressed >> > > (150 mb), I was unable to email it to you. Do you have any suggestion >> > > about how I can send you this information?. >> > > >> > > Thank you and best regards, >> > > >> > > >> > > Selene >> > >> > -- >> > Volkmar Glauche >> > - >> > Department of Neurology [log in to unmask] >> > Universitaetsklinikum Freiburg Phone 49(0)761-270-5331 >> > Breisacher Str. 64 Fax 49(0)761-270-5416 >> > 79106 Freiburg http://fbi.uniklinik-freiburg.de/ >> > >> > > -- Volkmar Glauche - Department of Neurology [log in to unmask] Universitaetsklinikum Freiburg Phone 49(0)761-270-5331 Breisacher Str. 64 Fax 49(0)761-270-5416 79106 Freiburg http://fbi.uniklinik-freiburg.de/