Increased interestingness of extraneous details in a multimedia science presentation leads to decreased learning
Journal of Experimental Psychology Applied (2008) - Comment
pubmed: 19102616  doi: 10.1037/a0013835  issn: 1076-898x  issn: 1939-2192 

Richard E. Mayer, Emily Griffith, Ilana T. N. Jurkowitz, Daniel Rothman