In order to further investigate the structural characteristics of some music tracks that may produce the "Mozart effect", this paper describes the key musical elements of "Mozart effect". Mozart K.448 and reversed Mozart K.448 are chosen as music stimulus materials to examine ethological changes of rodents and students. It has been proven that there is indeed the "Mozart effect". We also apply molecular biology techniques to carry out profound discussion on production mechanism of "Mozart effect". The results show that in hippocampus region, with the extension of music exposure time, the average optical density of the Mozart group is significantly higher than that of the blank group in appropriate development phase. The protein expression levels of BDNF/TrkB in the hippocampus and in auditory cortex regions of rats exposed to Mozart music in different development phases have been significantly increased, which coincides with ethological findings.
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