Mozart Effect, Cognitive Dissonance, and the Pleasure of Music

TL;DR

This paper investigates whether music's pleasurable qualities help tolerate cognitive dissonance, thereby improving mental performance and contributing to human cultural evolution, with experiments showing agreeable music enhances test performance.

Contribution

It introduces a hypothesis that music aids in tolerating cognitive dissonance, linking hedonicity to cognitive function and evolutionary development, supported by experimental evidence.

Findings

Agreeable music correlates with improved test performance.

Music may help tolerate cognitive dissonance during stressful tasks.

Pleasant music influences mental resilience and cognitive processing.

Abstract

The Mozart effect refers to scientific data on short-term improvement on certain mental tasks after listening to Mozart, and also to its popularized version that listening to Mozart makes you smarter (Tomatis, 1991; Wikipedia, 2012). Does Mozart effect point to a fundamental cognitive function of music? Would such an effect of music be due to the hedonicity, a fundamental dimension of mental experience? The present paper explores a recent hypothesis that music helps to tolerate cognitive dissonances and thus enabled accumulation of knowledge and human cultural evolution (Perlovsky, 2010, 2012). We studied whether the influence of music is related to its hedonicity and whether pleasant or unpleasant music would influence scholarly test performance and cognitive dissonance. Specific hypotheses evaluated here are that during a test students experience contradictory cognitions that cause cognitive dissonances. If some music helps to tolerate cognitive dissonances, then first, this music should increase the duration during which participants can tolerate stressful conditions while evaluating test choices. Second, this should result in improved performance. These hypotheses are tentatively confirmed in the reported experiments as the agreeable music was correlated with better performance above that under indifferent or unpleasant music. It follows that music likely performs a fundamental cognitive function explaining the origin and evolution of musical ability considered previously a mystery.