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Hi Geog If your data is encoded as NEUROLOGICAL (you can check using fslorient) - then you need to update to at least 4.1.6 to get the right dyads orientation. Cheers, Saad. On 22 Sep 2011, at 23:18, Georg Kerbler wrote: > Hi Saad, > > I checked the bvecs file and that's the same. > I'm currently using version 4.1.0, I realized that's not the latest one, so I just updated to version 4.1.6 and will run bedpost again to see if the new version changes anything. > Could the version be the issue? > > Georg > ________________________________________ > From: FSL - FMRIB's Software Library [[log in to unmask]] On Behalf Of Saad Jbabdi [[log in to unmask]] > Sent: Thursday, September 22, 2011 6:56 PM > To: [log in to unmask] > Subject: Re: [FSL] Discrepancy between V1 and dyads1 > > Hi Georg, > Are you sure you are using the same bvecs file? > Which version of FSL/FDT are you running? > > Saad. > > > On 22 Sep 2011, at 04:15, Georg Kerbler wrote: > >> Hi >> >> I am having some problems with bedpostx. The orientation of dyads is incorrect. I checked the orientation of V1 (with dtifit) before running bedpostx, and the orientations are correct with V1 (see attached screenshot). Any suggestions? >> >> Thanks >> Georg<Screenshot-1.png> > > -- > Saad Jbabdi > University of Oxford, FMRIB Centre > > JR Hospital, Headington, OX3 9DU, UK > (+44)1865-222466 (fax 717) > www.fmrib.ox.ac.uk/~saad > -- Saad Jbabdi University of Oxford, FMRIB Centre JR Hospital, Headington, OX3 9DU, UK (+44)1865-222466 (fax 717) www.fmrib.ox.ac.uk/~saad