Start planning: the 6th International Workshop on Pattern Recognition in Neuroimaging will be held at the University of Trento (Italy), (probably) 21-24 June 2016. PRNI is an OHBM satellite conference, generally held several days before and somewhat geographically near the OHBM conference, which next year is in Geneva, Switzerland, 26-30 June 2016. Once the hosting is sorted out the website will be (as for past meetings) linked from www.prni.org.
The paper deadline will be mid-March 2016, perhaps with a later deadline for short abstract-only poster submissions. Previous workshops' papers were published by IEEE; search for "Pattern Recognition in Neuroimaging". Conference papers are standard in many engineering-related fields, but might be unfamiliar for people from a psychology or neuroscience background. Basically, PRNI papers are "real" publications: they are peer-reviewed, published in proceedings, indexed, and cite-able. The paper guidelines aren't settled yet, but will likely be similar to those of previous years. MVPA methods papers (applications, statistical testing, ...) are a good fit for PRNI; not just fMRI, but any neuroimaging modality is welcome.
UPDATE 10 November 2015: prni.org now has information about PRNI 2016 (including the call for papers), and we'll be updating the website as time goes on. You can also follow on twitter @PRNI2016 or facebook.