- Correspondence to: C M Bird Institute of Cognitive Neuroscience, University College London, 17, Queen Square, London WC1N 3AR, UK;
- Received March 28, 2006
- Accepted June 4, 2006
- Revised May 26, 2006
- First published June 13, 2006.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.