were probed, novices were able to anticipate forward motion. Experts more readily anticipate the dynamic scene, resulting in larger representational momentum. Grasping Being able to estimate an object's size in order to pick it up involves an integration of visual information and motor control. Upon viewing implied motion depicting the handles of a pair of pliers either opening or closing, participants change their physical hand grip size in keeping with representational momentum, anticipating the future position of the handles. While the hand action anticipates the continued opening (or closing) of the pliers, visual judgments of the object's final handle position consistently underestimate the opening, indicating that the relationship between visual judgments and subsequent physical acts is not straightforward. Luminance Events depicting changes in luminance, or how bright a patch of color appears, do not lead to forward distortions in memory similar to representational momentum, but instead show backwards distortions. In other words, upon viewing an object getting progressively lighter and asked to remember the final shade, participants accept a darker version of the object (where a representational momentum parallel would be to accept a lighter shade). One suggestion for this difference is that memory is playing more of a role in determining color. References External links Representational Momentum Bibliography Cognition Visual perception Error Articles containing video clips