Barkus, C
Sanderson, D J
Rawlins, J N P
Walton, M E
Harrison, P J
Bannerman, D M
Article History
Received: 7 April 2014
Revised: 19 June 2014
Accepted: 25 June 2014
First Online: 16 September 2014
Competing interests
: DMB is a member of the Lilly Centre for Cognitive Neuroscience. The other authors declare no conflict of interest.