Is multispectral segmentation available for SPM12 longitudinal registration? If so, any references to supports its use in the new longitudinal registration method? Thanks, JEff ----------------------------------------------------------------------- Jeff Browndyke, Ph.D. Clinical & Research Neuropsychologist Durham VA & Duke University Medical Centers [log in to unmask] / [log in to unmask] office: (919) 286-0411 ext. 4656 cell: (336) 264-4222