Neuromagnetic representation of musical roundness in chord progressions
<sec id="sec1"><title>Introduction</title><p>Musical roundness perception relies on consonance/dissonance within a rule-based harmonic context, but also on individual characteristics of the listener. The present work tackles these aspects in a combined psychoacousti...
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| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
08 April 2024
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| In: |
Frontiers in neuroscience
Year: 2024, Jahrgang: 18, Pages: 1-17 |
| ISSN: | 1662-453X |
| DOI: | 10.3389/fnins.2024.1383554 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.3389/fnins.2024.1383554 Verlag, kostenfrei, Volltext: https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2024.1383554/full 
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| Verfasserangaben: | Sophie D. Wöhrle, Christoph Reuter, André Rupp and Martin Andermann |
MARC
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| 520 | |a <sec id="sec1"><title>Introduction</title><p>Musical roundness perception relies on consonance/dissonance within a rule-based harmonic context, but also on individual characteristics of the listener. The present work tackles these aspects in a combined psychoacoustic and neurophysiological study, taking into account participant’s musical aptitude.</p></sec><sec id="sec2"><title>Methods</title><p>Our paradigm employed cadence-like four-chord progressions, based on Western music theory. Chord progressions comprised naturalistic and artificial sounds; moreover, their single chords varied regarding consonance/dissonance and harmonic function. Thirty participants listened to the chord progressions while their cortical activity was measured with magnetoencephalography; afterwards, they rated the individual chord progressions with respect to their perceived roundness.</p></sec><sec id="sec3"><title>Results</title><p>Roundness ratings differed according to the degree of dissonance in the dominant chord at the progression’s third position; this effect was pronounced in listeners with high musical aptitude. Interestingly, a corresponding pattern occurred in the neuromagnetic N1m response to the <italic>fourth</italic> chord (i.e., at the progression’s resolution), again with somewhat stronger differentiation among musical listeners. The N1m magnitude seemed to increase during chord progressions that were considered particularly round, with the maximum difference after the final chord; here, however, the musical aptitude effect just missed significance.</p></sec><sec id="sec4"><title>Discussion</title><p>The roundness of chord progressions is reflected in participant’s psychoacoustic ratings and in their transient cortical activity, with stronger differentiation among listeners with high musical aptitude. The concept of roundness might help to reframe consonance/dissonance to a more holistic, gestalt-like understanding that covers chord relations in Western music.</p></sec> | ||
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