New York Times: Does a Nation’s Mood Lurk in Its Songs and Blogs?
... In a new paper, a pair of statisticians at the University of Vermont argue that linguistic analysis — not just of song lyrics but of blogs and speeches — could add a new and valuable dimension to a growing area of mass psychology: the determination of national well-being.
“We argue that you can use this data as a kind of remote sensor of well-being,” said Peter Sheridan Dodds, a co-author of the new paper, with Christopher M. Danforth; both are in the department of mathematics and statistics.
“It’s information people are volunteering; they’re not being surveyed in the usual way,” Dr. Dodds went on. “You mess with people when you ask them questions about happiness. You’re not sure if they’re trying to make you happy, or have no idea whether they’re happy. It’s reactive.” ...
... Some of the findings were expected. Sept. 11, 2001, was rock bottom, for instance. Others were less so: the day that Michael Jackson died also lowered people’s mood significantly. The high-water mark was the day President Obama was elected, when the word “proud” was predominant.
Christmas and Valentine’s Day regularly popped as positive times, although words like “guilty” were associated with Christmas and “waste” and “lonely” with Valentine’s Day.
The researchers also analyzed the emotional content of blogs by the age of the blogger, and they found a curious pattern. Teenagers, true to form, rated the lowest, with an abundance of “sick,” “hate” and “stupid.”
With advancing age the tone gradually softened, rising to a high plateau in apparent emotional well-being through the 50s and 60s, then dropping after age 70 — when the word “sick” began to reappear. ...