1 Grasp preparation improves change-detection for congruent objects Ed Symes Mike Tucker Rob Ellis Lari Vainio Giovanni Ottoboni School of Psychology University of Plymouth Plymouth United Kingdom This work was supported by grants from the Economic and Social Research Council (RES-000-22-0799 and RES-000-23-1497). We would like to thank Phil Culverhouse for the generous use of his eye tracker, and Peter Gibbons for his help with piloting it. We would also like to thank Glyn Humphries, Scott Glover and two anonymous reviewers for their constructive comments and recommendations on an earlier draft. Correspondence should be addressed to Ed Symes, School of Psychology, University of Plymouth, Drake Circus, Plymouth, Devon, PL4 8AA, United Kingdom Tel: +44 (0)1752 233168 Fax: +44 (0)1752 233362 Email: esymes@plymouth.ac.uk