At The Art of Presentation event recently, I met Jac Cattaneo from Northbrook College Sussex, an affiliated college of the University of Brighton. She worked on a Visual Practices Project for LearnHigher that looked at the use of individually-designed posters instead of PowerPoint as a visual aid in assessed student presentations.
More information about the project is available here:
The above Web page also includes links to the Full Project Report as well as a PDF guide to using posters to support research presentations. Having looked at the guide I am inspired to use it in combination with the technology possibilities of Prezi.