Talking to yourself doesn't mean your crazy (... if you're doing math!)

So I have always been a fan of talking aloud to work out problems. In high school I caught a few odd stares from students and teachers alike, and in college people just thought I was crazy. That is until I joined a study group where we talked out the problems (increasingly more difficult!) together, aloud. When it was under the guise of a conversation, I supposed, it didn't seem so odd. When I did it alone in my office in grad school, my colleagues just thought I was a little crazy (or maybe just an eccentric academic).
But new research at the University of Granada indicates that talking aloud improves both speed AND accuracy when solving math problems. They took several graduating seniors who majored in mathematics and recorded them solving difficult problems. Those who spoke aloud to themselves (as well as those who drew pictures to represent the problem) were more likely to find the solution, and did so in a shorter time, than those who didn't!!!
The paper doesn't appear to be published yet in the Electronic Journal of Research in Educational Psychology (and I can't seem to find Revista de investigación psicoeductiva), after an exhaustive search of the internet I can only seem to find press releases and news articles about the finding. But I will update this post with a link when the publication is available on the web...
SciAm: http://www.scientificamerican.com/podcast/episode.cfm?id=find-x-and-say-your-work-09-12-28
Guardian: http://www.telegraph.co.uk/science/science-news/6866135/Thinking-out-loud-helps-solve-problems.html
RedOrbit (more detailed): http://www.redorbit.com/news/science/1801621/talking_aloud_helps_to_solve_mathematical_problems_more_quickly_according/index.html