The correlation between music and individuals is a much-studied subject. This literature review will critically evaluate Don Campbell's (1997, p. 24) claim that "playing Mozart makes babies smarter." This review will examine the history of the Mozart effect and will also examine a series of sources that support and contradict the claim that the Mozart effect makes babies smarter. These statements will be analyzed through the three main measures in relation to the Mozart effect, namely spatial reasoning, arousal and also mood. The idea of ​​the Mozart effect began in 1993 with a study conducted by Rauscher, Shaw & Ky. This study involved 36 universities. students performed three different IQ spatial reasoning tasks and, for each test, used either Mozart's Sonata for Two Pianos in D major and relaxation music, silence was also used. The results of this experiment showed that students who listened to Mozart's music performed better on spatial reasoning tests compared to silence or relaxation music. The results also showed that the impact of Mozart's music was only temporary and lasted only 10 to 15 minutes. Overall, this study was very basic and had many flaws such as the sample size as well as the variety of tests used to examine the impact of music (Rauscher, Shaw & Ky, 1993). In 1997, Don Campbell's book, The Mozart Effect, popularized the claim that music makes children smarter. This book sparked public interest in music and brain development. The book uses Rauscher's experience as an example of what Mozart's music can do. This experiment showed a temporary increase in spatial reasoning, but this was misinterpreted by the public as an increase in IQ. The popularization of...... middle of paper ......(3), 248-251. Retrieved from http://www.erin.utoronto.ca/~w3psygs/Thompson2001.pdfHusain, G, Schellenberg, G and Thompson, W. (2002). Effects of tempo and musical mode on arousal, mood, and spatial abilities. Music Perception, 20(2), 151-171. Retrieved from http://www.erin.utoronto.ca/~w3psygs/Husain.pdfJones, S and Zigler E. (2002). The Mozart effect: not learning the lessons of history. Applied Developmental Psychology, 23(3), 355-372. Retrieved from http://www.sciencedirect.com.ezp01.library.qut.edu.au/science/article/pii/S0193397302001132 Rauscher, FH, Shaw, GL and Ky, KN (1993). Musical and spatial performance. Nature, 365(6447), 611. doi:10.1038/365611a0Sack, K. (January 15, 1998). Georgia governor seeks musical start for babies. New York Times. Retrieved from http://www.nytimes.com/1998/01/15/us/georgia-s-governor-seeks-musical-start-for-babies.html