It depends on how you are doing it. If you are using DARTEL, then it is a bit tricky and would need a load of extra MATLAB coding. If you are just averaging spatially normalised images, then it is a bit more straightforward. Best regards, -John On Wed, 2009-10-07 at 15:51 +0200, Vincent Marcon wrote: > Dear SPM and TOM users, > > I try to create a template and I want to know if it's possible to > create a template by progressive generation. > For example, if I create a first template with ten people, how I can > add one person to this template without do the creation of the > template with those eleven people. So I just want to add one person to > my template and I don't want to start again the creation of the > template with all people. > > thanks you in advance > > Vincent > -- John Ashburner <[log in to unmask]>