“Listening to classical music makes babies smarter.”

The widespread idea that listening to classical music, particularly Mozart, makes babies smarter stems from a 1993 study published in the journal Nature. Researchers Frances Rauscher, Gordon Shaw, and Catherine Ky conducted an experiment with 36 college students, not infants, where they observed a temporary, short-term improvement in spatial reasoning tasks after listening to Mozart's Sonata for Two Pianos in D major for about ten minutes. This modest finding, which suggested a brief enhancement in specific mental tasks like paper folding and solving mazes, was quickly sensationalized by the media, leading to headlines that dramatically overstated the results and birthed the "Mozart Effect" myth.

Despite the media's enthusiastic portrayal, subsequent scientific research has largely debunked the notion of a lasting increase in intelligence from simply listening to classical music. The original study's authors themselves clarified that the effect was limited to spatial-temporal reasoning and did not indicate an enhancement of general intelligence. Multiple meta-analyses, which combine the results of many studies, have found little to no evidence to support the idea that passive listening to Mozart or any classical music improves cognitive development or IQ in infants. Any observed temporary boosts are generally attributed to improvements in mood or alertness, which can briefly aid performance on certain tasks.

The belief in the "Mozart Effect" persists for several reasons. The appealing promise of a simple way to give children a cognitive "head start" resonated deeply with parents. This parental desire, coupled with aggressive marketing campaigns that produced "Baby Mozart" CDs and "Baby Einstein" products, fueled the misconception and turned it into a global parenting fad. The inherent prestige and perceived intellectual benefits of classical music also contributed to its widespread acceptance, even as scientific evidence consistently showed that real musical growth and potential cognitive benefits come from active engagement and learning an instrument, rather than passive listening alone.