Thanks Doug Merkitch for reply. If Realignment1 is 'Realign: Estimate&Reslice' its output data(i1,i2,i3) must be prefixed by ''r'' (Which I studied in SPM8 Manual). So please correct me if I am wrong. On Mon, Jun 16, 2014 at 5:00 PM, Douglas Merkitch <[log in to unmask] > wrote: > Hello Venkata, > > I believe that both realignments are VBM8 Realign: Estimate & Reslice. > This batch module can be found in the batch editor under > SPM-Tools-VBM8-Tools-Realign longitudinal data-VBM8 Realign: Estimate & > Reslice. (see attached screenshot) > > Hope this helps, > > Doug > > Doug Merkitch > Neurological Sciences > Rush University Medical Center > Email: [log in to unmask] > > > On Jun 16, 2014, at 6:38 AM, venkata Chaitanya < > [log in to unmask]> > wrote: > > Dear SPM Experts, > > I am doing Preprocessing of Longitudinal data using VBM8 Toolbox( > http://dbm.neuro.uni-jena.de/vbm8/VBM8-Manual.pdf). In the above pdf in > page no 17, Its given that we have Two Realignments(Realignment1, and > Realignment2). > As far as I understood till now it can be one of these three > things.1)Realignment:Estimate 2)Realignment:Reslice > 3)Realignment:Estimate&Reslice. It would be great if someone tell me what > is Realignment1 and Realignment2 exactly. > > Thanks for your help. > > >