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That is right. Looking at the code it seems that nslices is rather fundamental for the way the code works, and that extra matlab coding will be needed. You could either rewrite the spm_slicetiming.m code or alternatively split each of the current volumes into (in our example) three volumes, and perform the correction on each of the segments seperately, and then after the correction merge the volumes again. Much better would of course be a slice specific designmatrix in which case this would not be a problem. Best Torben Torben Ellegaard Lund Associate Professor, PhD Center of Functionally Integrative Neuroscience (CFIN) Aarhus University Aarhus University Hospital Building 10G, 5th floor, room 31 Noerrebrogade 44 8000 Aarhus C Denmark Phone: +45 7846 4380 Fax: +45 7846 4400 http://www.cfin.au.dk [log in to unmask] Den Uge:23 02/06/2014 kl. 13.37 skrev Rajat Thomas <[log in to unmask]>: > Hi Torben, > > Thank you for your suggestion. I think it is a good compromise because in this case for example, 1 3 5 which should be offset by zero (because its acquired simultaneously) but will be offset by TR/15 (using default SPM). Indeed for TRs < 1s, this would be negligible. > > Cheers, > > Rajat > > > > Rajat Mani Thomas > Social Brain Lab > Netherlands Institute for Neuroscience > Amsterdam > From: Torben Lund <[log in to unmask]> > Sent: 02 June 2014 11:48 > To: Rajat Thomas > Cc: spm Parametric Mapping) > Subject: Re: [SPM] Multiband Slice timing > > Hi Rajat > > This is a wild guess which I have not testet, but have you tried a sliceorder vector which reflects the situation e.g. with 15 slices and multislice acceleration of 3 [1 3 5 2 4 1 3 5 2 4 1 3 5 2 4 ] > > Best > Torben > > > Torben Ellegaard Lund > Associate Professor, PhD > Center of Functionally Integrative Neuroscience (CFIN) > Aarhus University > Aarhus University Hospital > Building 10G, 5th floor, room 31 > Noerrebrogade 44 > 8000 Aarhus C > Denmark > Phone: +45 7846 4380 > Fax: +45 7846 4400 > http://www.cfin.au.dk > [log in to unmask] > > > > > > Den Uge:23 02/06/2014 kl. 11.08 skrev Rajat Thomas <[log in to unmask]>: > >> ​Dear SPMers, >> >> Any suggestion on how to perform multiband slice timing in SPM? >> >> Thanks. >> >> Rajat >> >> >> >> Rajat Mani Thomas >> Social Brain Lab >> Netherlands Institute for Neuroscience >> Amsterdam