Dear Jerome, The number of iterations can be modified by changing line 47 of spm_eeg_inv_icp Best, Vladimir 2011/8/30 Jérôme Courtemanche <[log in to unmask]>: > Hi Vladimir, > > Sorry for such a simple question but could you indicate me how to augment > the number of iterations in the coregistering of the headshape and mri? I > have a feeling that more of it would help. > > Be well, > > Jerome