Dear SPMers, just a quick question: is there a theoretical reason of why one cannot select an extent threshold for a conjunction or this just some ancient restriction that can discarded? Thanks, Jan -- Jan Gläscher, Ph.D. Div. Humanities & Social Sciences +1 (626) 395-3898 (office) Caltech, Broad Center, M/C 114-96 +1 (626) 395-2000 (fax) 1200 E. California Blvd [log in to unmask] Pasadena, CA 91125