The Mozart effect can refer to:
- A set of research results that indicate listening to Mozart's music may induce a short-term improvement on the performance of certain kinds of mental tasks known as "spatial-temporal reasoning;"
- Popularized versions of the hypothesis, which suggest that "listening to Mozart makes you smarter", or that early childhood exposure to classical music has a beneficial effect on mental development;
- A US trademark for a set of commercial recordings and related materials, which are claimed to harness the effect for a variety of purposes. The trademark owner, Don Campbell, Inc., claims benefits far beyond improving spatio-temporal reasoning or raising intelligence, defining the mark as "an inclusive term signifying the transformational powers of music in health, education, and well-being."
The term was first coined by Alfred A. Tomatis who used Mozart's music as the listening stimulus in his work attempting to cure a variety of disorders. The approach has been popularized in a book by Don Campbell, and is based on an experiment published in Nature suggesting that listening to Mozart temporarily boosted scores on one portion of the IQ test. As a result, the Governor of Georgia, Zell Miller, proposed a budget to provide every child born in Georgia with a CD of classical music.
Alfred A. Tomatis 
The concept of the "Mozart effect" was described by French researcher Dr. Alfred A. Tomatis in his 1991 book Pourquoi Mozart? (Why Mozart?). He used the music of Mozart in his efforts to "retrain" the ear, and believed that listening to the music presented at differing frequencies helped the ear, and promoted healing and the development of the brain.
Rauscher et al. 1993 study 
Rauscher, Shaw, and Ky (1993) investigated the effect of listening to music by Mozart on spatial reasoning, and the results were published in Nature. They gave research participants one of three standard tests of abstract spatial reasoning after they had experienced each of three listening conditions: a sonata by Mozart, repetitive relaxation music, and silence. They found a temporary enhancement of spatial-temporal reasoning, as measured by the Stanford-Binet IQ test. Shaw and Rauscher claim that their work has been misrepresented. What they have shown is "that there are patterns of neurons that fire in sequences, and that there appear to be pre-existing sites in the brain that respond to specific frequencies."* This is not quite the same as showing that listening to Mozart increases intelligence in children.
Rauscher et. al. show that the enhancing effect of the music condition is only temporary: no student had effects extending beyond the 15-minute period in which they were tested. The study makes no statement of an increase in IQ in general, but in participants' spatial intelligence scores.
While Rauscher et. al. only showed an increase in "spatial intelligence", the results were popularly interpreted as an increase in general IQ. This misconception, and the fact that the music used in the study was by Mozart, had an obvious appeal to those who valued this music; the Mozart effect was thus widely reported. In 1994, New York Times music columnist Alex Ross wrote in a light-hearted article, "researchers [Rauscher and Shaw] have determined that listening to Mozart actually makes you smarter", and presented this as the final piece of evidence that Mozart has dethroned Beethoven as "the world's greatest composer. " A 1997 Boston Globe article mentioned some of the Rauscher and Shaw results. It described one study in which three- and four-year-olds who were given eight months of private piano lessons scored 34% higher on tests of spatio-temporal reasoning than control groups given computer lessons, singing lessons, and no training.
The 1997 book by Don Campbell, "The Mozart Effect: Tapping the Power of Music to Heal the Body, Strengthen the Mind, and Unlock the Creative Spirit", discusses the theory that listening to Mozart (especially the piano concertos) may temporarily increase one's IQ and produce many other beneficial effects on mental function. Campbell recommends playing specially selected classical music to infants, in the expectation that it will benefit their mental development. These theories are controversial. The relationship of sound and music (both played and listened to) for cognitive function and various physiological metrics has been explored in studies with no definitive results. After The Mozart Effect, Campbell wrote a follow-up book, The Mozart Effect For Children, and created related products. Among these are collections of music that he states harness the Mozart effect to enhance "deep rest and rejuvenation", "intelligence and learning", and "creativity and imagination". Campbell defines the term as "an inclusive term signifying the transformational powers of music in health, education, and well-being. It represents the general use of music to reduce stress, depression, or anxiety; induce relaxation or sleep; activate the body; and improve memory or awareness. Innovative and experimental uses of music and sound can improve listening disorders, dyslexia, attention deficit disorder, autism, and other mental and physical disorders and diseases".
Political impact 
The political impact of the theory was demonstrated on January 13, 1998, when Zell Miller, governor of Georgia, announced that his proposed state budget would include $105,000 a year to provide every child born in Georgia with a tape or CD of classical music. Miller stated "No one questions that listening to music at a very early age affects the spatial-temporal reasoning that underlies math and engineering and even chess." Miller played legislators some of Beethoven's "Ode to Joy" on a tape recorder and asked "Now, don't you feel smarter already?" Miller asked Yoel Levi, music director of the Atlanta Symphony, to compile a collection of classical pieces that should be included. State representative Homer M. DeLoach said "I asked about the possibility of including some Charlie Daniels or something like that, but they said they thought the classical music has a greater positive impact. Having never studied those impacts too much, I guess I'll just have to take their word for that."
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."
Health benefits 
Music has been evaluated to see if it has other properties. The April 2001 edition of Journal of the Royal Society of Medicine assessed the possible health benefits of the music of Mozart. John Jenkins played Sonata K.448 to patients with epilepsy and found a decrease in epileptiform activity. According to the British Epilepsy Organization, research has suggested that apart from Mozart's K.448 and Piano Concerto No. 23 (K. 488), only one other piece of music has been found to have a similar effect; a song by the Greek composer Yanni, entitled "Acroyali/Standing in Motion" (version from Yanni Live at the Acropolis performed at the Acropolis). It was determined to have the "Mozart effect", by the Journal of the Royal Society of Medicine because it was similar to Mozart's K.448 in tempo, structure, melodic and harmonic consonance and predictability.
Other uses of Mozart's music 
While it is clear that exposure to Mozart does not raise IQ, studies of the effects of music have explored as diverse areas as its links to seizure onset or research in animals suggesting that even exposure in-utero in rats improves their maze learning The original claim continues to influence public life. For instance a German sewage treatment plant plays Mozart music to break down the waste faster, reports the UK Guardian. Anton Stucki, chief operator of the Treuenbrietzen plant was quoted as saying, "We think the secret is in the vibrations of the music, which penetrate everything—including the water, the sewage and the cells."
See also 
- William Pryse-Phillips (2003). Companion to Clinical Neurology. Oxford University Press. ISBN 0-19-515938-1., p. 611 defines the term as "Slight and transient improvement in spational[sic] reasoning skills detected in normal subjects as a result of exposure to the music of Mozart, specifically his sonata for two pianos (K448)."
- United States Patent and Trademark Office Trademark Application and Registration Retrieval (TARR).
- Rauscher, Frances H.; Shaw, Gordon L.; Ky, Catherine N. (1993). "Music and spatial task performance". Nature 365 (6447): 611. doi:10.1038/365611a0. PMID 8413624.
- Ross, Alex (August 28, 1994). "CLASSICAL VIEW; Listening To Prozac . . . Er, Mozart". New York Times. Retrieved 2012-11-15.
- Campbell, Don (1997). The Mozart Effect: Tapping the Power of Music to Heal the Body, Strengthen the Mind, and Unlock the Creative Spirit. ISBN 0-380-97418-5.
- Sack, Kevin (1998-01-15). "Georgia's Governor Seeks Musical Start for Babies". The New York Times. p. A12.
- Wilson, T., Brown, T. (1997). Reexamination of the effect of Mozart's music on spatial task performance. Journal of Psychology. 131 (4), 365. Retrieved December 4, 2007, from EbscoHost Research Databases.
- Thompson, W.F., Schellenberg, E.G. & Husain, G. (2001). Mood, arousal, and the Mozart effect. Psychological Science, 12(3), 248-251.
- McKelvie, P , Jason Low, J(2002). Listening to Mozart does not improve children's spatial ability: Final curtains for the Mozart effect. British Journal of Developmental Psychology, 20, 241–258.
- Schellenberg, E.G., & Hallam, S. (2005). Music listening and cognitive abilities in 10 and 11 year olds: The Blur effect. Annals of the New York Academy of Sciences, 1060, 202-209.
- "Effects of listening to Mozart and Bach on the performance of a mathematical test" Bridgett, D.J.; Cuevas, J. (2000). Perceptual and Motor Skills, 90. pp. 1171–1175. ISBN.
- Chabris, Christopher F. (1999). "Prelude or requiem for the 'Mozart effect'?". Nature 400 (6747): 826–827. doi:10.1038/23608. PMID 10476958.
- Steele, Kenneth M.; Bella, Simone Dalla; Peretz, Isabelle; Dunlop, Tracey; Dawe, Lloyd A.; Humphrey, G. Keith; Shannon, Roberta A.; Kirby, Johnny L. et al. (1999). "Prelude or requiem for the 'Mozart effect'?". Nature 400 (6747): 827. doi:10.1038/23611. PMID 10476959.
- Steele, Kenneth M.; Bass, Karen E.; Crook, Melissa D. (1999). "The Mystery of the Mozart Effect: Failure to Replicate". Psychological Science 10 (4): 366–369. doi:10.1111/1467-9280.00169.
- Steele, M. "Papers by Steele casting doubt on the Mozart effect". appstate.edu. Retrieved 2007-03-24.
- Husain, G., Thompson, W.F. & Schellenberg, E.G. (2002). Effects of musical tempo and mode on arousal, mood, and spatial abilities: Re-examination of the "Mozart effect". Music Perception, 20, 151-171.
- Abbott, Alison. "Mozart doesn't make you clever". Nature.com. Retrieved 2009-05-22.
- Schumacher, Ralph. "Macht Mozart schlau?" (in German). Bundesministerium für Bildung und Forschung. p. 183. Retrieved 2009-05-22.
- Goode, Erica (1999), "Mozart For Baby? Some Say, Maybe Not". The New York Times, 1999-08-03 p. f1: Rauscher, "the money could be better spent on music education programs."
- "The Mozart Effect". epilepsy.org. Retrieved 2007-08-07.
- Yanni; Rensin, David (2002). Yanni in Words. Miramax Books. p. 67. ISBN 1-4013-5194-8.
- Hughes, J., Daaboul Y., Fino, J., Shaw, G. (1998). The Mozart effect on epileptiform activity. Clin Electroencephalogr,29 (3), 109-19. Retrieved December 3, 2007, from Pubmed Database.
- "Improved maze learning through early music exposure in rats". Neurol. Res. (National Center for Biotechnology Information) 20 (5): 427–32. July 1998. PMID 9664590.
- Connolly, Kate (2 June 2010). "Sewage plant plays Mozart to stimulate microbes". The Guardian. Retrieved 8 April 2011.
- ""Mozart's music does not make you smarter, study finds", Science Daily, May 10, 2010
- Dowd, Will. (2008-02-06) ISSN 15565696. The myth of the Mozart effect
- Skeptic's Dictionary - The Mozart Effect
- Extensive collection of articles and links - Danish Radio Sinfonietta
- Frequently asked questions on the Mozart Effect