Help researchers understand earworms
Researchers at Goldsmiths, University of London, in a collaboration with the BBC 6 and the British Academy, are conducting research to find out about the music in people’s heads, sometimes called ’musical imagery’. They want to know what songs are the most common, whether people like it or don’t, what triggers it, and if some people have music in their head all the time, etc.
To help researchers understand this phenomenon, take part in a questionnaire (and you could win £150 too). I took the survey, it took about 10 minutes. They do ask some rather personal questions that seem related to one's tendency towards compulsive behavior. (yes, I do sometimes count the stairs that I'm walking up).
It looks to be an interesting research project. More details about it are here: The Earwomery.com