One-Handed Gestures (IMAGE) Max-Planck-Gesellschaft Caption These are examples of one-handed gestures produced by the 2004 and 2008 US presidential candidates. Right-handers associated right-hand gestures more with positive speech and left-hand gestures with negative speech. Left-handers showed the opposite pattern. Credit Daniel Casasanto Usage Restrictions This image may only be used or reproduced for editorial purposes and in connection with scientific articles on our press material, in which case such usage or reproduction is free of charge and requires no permission. Any other use, in particular for commercial purposes, requires prior permission of the author or photographer. Further enquires can be answered in the Press and Public Relations Office - simply write an e-mail to gebhard@gv.mpg.de. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.