Mozart Effect - Subsequent Research and Meta-analyses

Subsequent Research and Meta-analyses

While some supportive reports have been published (e.g.), studies with positive results have tended to be associated with any form of music that has energetic and positive emotional qualities. Among children, some studies suggest no effect on IQ or spatial ability, whereas others suggest that the effect can be elicited with energetic popular music that the children enjoy. The weight of subsequent evidence supports either a null effect, or short-term effects related to increases in mood and arousal, with mixed results published after the initial report in Nature. (e.g.)

In 1999 a major challenge was raised to the existence of the Mozart effect by two teams of researchers. In a pair of papers published together under the title "Prelude or Requiem for the 'Mozart Effect'?" Chabris reported a meta-analysis demonstrating that "any cognitive enhancement is small and does not reflect any change in IQ or reasoning ability in general, but instead derives entirely from performance on one specific type of cognitive task and has a simple neuropsychological explanation", called "enjoyment arousal". For example, he cites a study that found that "listening either to Mozart or to a passage from a Stephen King story enhanced subjects' performance in paper folding and cutting (one of the tests frequently employed by Rauscher and Shaw) but only for those who enjoyed what they heard". Steele et. al. found that "listening to Mozart produced a 3-point increase relative to silence in one experiment and a 4-point decrease in the other experiment". In another study, the effect was replicated with the original Mozart music, but eliminated when the tempo was slowed down and major chords were replaced by minor chords.

Government bodies also became involved in analysing the wealth (some 300+ articles as of 2005) of reports. A German report concluded, for instance, that "... passively listening to Mozart — or indeed any other music you enjoy — does not make you smarter. But more studies should be done to find out whether music lessons could raise your child's IQ in the long term".

Popular presentations of the "Mozart effect", including Alex Ross's comment that "listening to Mozart actually makes you smarter" and Zell Miller's "don't you feel smarter" query to the Georgia legislature, almost always tie it to "intelligence." Rauscher, one of the original researchers, has disclaimed this idea. In a 1999 reply to an article challenging the effect, published along with the article, she wrote (emphasis added):

Our results on the effects of listening to Mozart's Sonata for Two Pianos in D Major K. 448 on spatial–temporal task performance have generated much interest but several misconceptions, many of which are reflected in attempts to replicate the research. The comments by Chabris and Steele et al. echo the most common of these: that listening to Mozart enhances intelligence. We made no such claim. The effect is limited to spatial–temporal tasks involving mental imagery and temporal ordering.

On efforts like Miller's budget proposal, and the press attention surrounding the effect, Rauscher has said, "I don't think it can hurt. I'm all for exposing children to wonderful cultural experiences. But I do think the money could be better spent on music education programs."