Dear SPMers, Performing a standard 1-way ANOVA within-subjects using SPM8, the matrix is weighted very differently depending on whether the model is estimated using SPM8 v3684 or v4010. Both models below have been generated using the same batch job. Any idea of what has changed between the two versions ? Thanks Swann Left: v3684 Right: v4010 [image: Design_matrix_spm8_v3684.jpg][image: Design_matrix_spm8_v4010.jpg] -- Swann Pichon, PhD Laboratory for Behavioral Neurology and Imaging of Cognition Department of Neuroscience, University Medical Center 1 rue Michel-Servet, 1211 GENEVA 4, Switzerland Tel: +41 (0)22 379 5979 Fax: +41 (0)22 379 5402 Gsm: +33 (0)6 26 43 83 61 http://labnic.unige.ch/