Dimitre will provide an introduction to RSA based on the following paper:
Walther A, Ejaz N, Kriegeskorte N, Diedrichsen J. Representational fMRI analysis: An introductory tutorial. http://www.diedrichsenlab.org/pubs/representational_analysis.pdf
If you're interested, Jo Etzel has also blogged about RSA: http://mvpa.blogspot.com/search/label/RSA