published 15 October 2003 , , doi: 10.1098/rsta.2003.1251 361 2003 Phil. Trans. R. Soc. Lond. A Paul Fitzpatrick and Giorgio Metta manipulation Grounding vision through experimental Email alerting service here article or click - sign up in the box at the top right-hand corner of the Receive free email alerts when new articles cite this article http://rsta.royalsocietypublishing.org/subscriptions go to: Phil. Trans. R. Soc. Lond. A To subscribe to on February 27, 2013 rsta.royalsocietypublishing.org Downloaded from