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The spatial representation of loudness in a timbre discrimination task
When participants decide whether a presented tone is loud or soft they react faster to loud tones with a top-sided response key in comparison to a bottom-sided response key and vice versa for soft tones. This effect is comparable to the well-established horizontal Spatial-Numerical Association of Re...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10652803/ https://www.ncbi.nlm.nih.gov/pubmed/38025962 http://dx.doi.org/10.1177/20416695231213213 |
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author | Koch, Sarah Schubert, Torsten Blankenberger, Sven |
author_facet | Koch, Sarah Schubert, Torsten Blankenberger, Sven |
author_sort | Koch, Sarah |
collection | PubMed |
description | When participants decide whether a presented tone is loud or soft they react faster to loud tones with a top-sided response key in comparison to a bottom-sided response key and vice versa for soft tones. This effect is comparable to the well-established horizontal Spatial-Numerical Association of Response Codes (SNARC) effect and is often referred to as Spatial-Musical Association of Response Codes (SMARC) effect for loudness. The SMARC effect for loudness is typically explained by the assumption of a spatial representation or by the polarity correspondence principle. Crucially, both theories differ in the prediction of the SMARC effect when loudness is task-irrelevant. Therefore, we investigated whether the SMARC effect still occurs in a timbre discrimination task: Participants (N = 36) heard a single tone and classified its timbre with vertically arranged response keys. Additionally, the tone's loudness level varied in six levels. In case of a spatial representation, the SMARC effect should still occur while in case of polarity corresponding principle, the effect should be absent. Results showed that the SMARC effect was still present and that the differences between top-sided and bottom-sided responses were a linear function of loudness level indicating a continuous spatial representation of loudness. |
format | Online Article Text |
id | pubmed-10652803 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-106528032023-11-14 The spatial representation of loudness in a timbre discrimination task Koch, Sarah Schubert, Torsten Blankenberger, Sven Iperception Standard Article When participants decide whether a presented tone is loud or soft they react faster to loud tones with a top-sided response key in comparison to a bottom-sided response key and vice versa for soft tones. This effect is comparable to the well-established horizontal Spatial-Numerical Association of Response Codes (SNARC) effect and is often referred to as Spatial-Musical Association of Response Codes (SMARC) effect for loudness. The SMARC effect for loudness is typically explained by the assumption of a spatial representation or by the polarity correspondence principle. Crucially, both theories differ in the prediction of the SMARC effect when loudness is task-irrelevant. Therefore, we investigated whether the SMARC effect still occurs in a timbre discrimination task: Participants (N = 36) heard a single tone and classified its timbre with vertically arranged response keys. Additionally, the tone's loudness level varied in six levels. In case of a spatial representation, the SMARC effect should still occur while in case of polarity corresponding principle, the effect should be absent. Results showed that the SMARC effect was still present and that the differences between top-sided and bottom-sided responses were a linear function of loudness level indicating a continuous spatial representation of loudness. SAGE Publications 2023-11-14 /pmc/articles/PMC10652803/ /pubmed/38025962 http://dx.doi.org/10.1177/20416695231213213 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Standard Article Koch, Sarah Schubert, Torsten Blankenberger, Sven The spatial representation of loudness in a timbre discrimination task |
title | The spatial representation of loudness in a timbre discrimination task |
title_full | The spatial representation of loudness in a timbre discrimination task |
title_fullStr | The spatial representation of loudness in a timbre discrimination task |
title_full_unstemmed | The spatial representation of loudness in a timbre discrimination task |
title_short | The spatial representation of loudness in a timbre discrimination task |
title_sort | spatial representation of loudness in a timbre discrimination task |
topic | Standard Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10652803/ https://www.ncbi.nlm.nih.gov/pubmed/38025962 http://dx.doi.org/10.1177/20416695231213213 |
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