Now on the "somewhat related" field... A bug in fMRI software could invalidate 15 years of brain research More here http://www.sciencealert.com/a-bug-in-fmri-software-could-invalidate-decades= -of-brain-research-scientists-discover The part that makes it relevant to this thread: "could invalidate the results of some 40,000 papers"... -Denny --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .