Hello, I am using the "new segment toolbox" for both segmentation and normalization processes. During normalization, it is possible to obtain a deformation field archive (its name by default starts with an "y"). I would like to know if it is possible to obtain a global measure of the deformation field required. In particular, I would use that to find which of the T1-MRIs of certain dataset is closer or more similar to a third one. Thank you in advance for your help. Best regards, Joaquín -- -------------------------------- Joaquín Goñi, Ph.D Neuroimaging Lab. Dpt. of Neurosciences - CIMA University of Navarra Pamplona (Spain) Phone (+34) 948194700 Ext 2035 (+34) 948425600 Ext 6634 Fax (+34) 948194715 --------------------------------