David Merrell, a high school student from Suffolk, Virginia, has won top honors in regional and state science fairs for his experiment involving mice, a maze and hard-rock music.
After establishing a baseline of about 10 minutes for the mice to navigate the maze, David started playing music 10 hours a day, then put the mice through the maze three times a week for three weeks.
His findings: the control-group mice, which did not listen to any music, were able to cut five minutes off their time; the mice that listened to classical music cut 8.5 minutes off their time; and the mice that listened to hard-rock music took 20 minutes longer to navigate the maze.
David said, "I had to cut my project short because all the hard-rock mice killed each other . None of the classical mice did that at all."
Source: Washington Times, 2 July 1997