Dear SPMers. Could anybody teach me the definition of the bin length and the N of bin (FIR calculation of MARSBAR)? --------------------------------------- Woo Suk, Tae Senior Researcher Neuroimaging Laboratory. Neurology, Samsung Medical Center, Seoul, Korea Tel: 82-2-3410-2738 Fax: 82-2-3410-2759 email: [log in to unmask] ---------------------------------------