http://adb.sagepub.com Adaptive Behavior DOI: 10.1177/10597123030112004 2003; 11; 109 Adaptive Behavior Giorgio Metta and Paul Fitzpatrick Better Vision through Manipulation http://adb.sagepub.com/cgi/content/abstract/11/2/109 The online version of this article can be found at: Published by: http://www.sagepublications.com On behalf of: International Society of Adaptive Behavior can be found at: Adaptive Behavior Additional services and information for http://adb.sagepub.com/cgi/alerts Email Alerts: http://adb.sagepub.com/subscriptions Subscriptions: http://www.sagepub.com/journalsReprints.nav Reprints: http://www.sagepub.com/journalsPermissions.nav Permissions: http://adb.sagepub.com/cgi/content/refs/11/2/109 SAGE Journals Online and HighWire Press platforms): (this article cites 22 articles hosted on the Citations © 2003 International Society of Adaptive Behavior. All rights reserved. Not for commercial use or unauthorized distribution. at PENNSYLVANIA STATE UNIV on April 12, 2008 http://adb.sagepub.com Downloaded from