I am starting a graduating project that is an interactive software for teaching programming with an animated interface and I need a reference to an article that discusses the latest discoveries about how visualization, specially colors and moving images are important in the process of learning. I heared about it back in 2005, so now the whole understanding became deeper, but I can't find a good article, only books. It would be nice to know about a good book about it, but for now I need to start the project and I need an article in first place.

Thank you in advance.