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Tailored Perception: Individuals’ Speech and Music Perception Strategies Fit Their Perceptual Abilities
Perception involves integration of multiple dimensions that often serve overlapping, redundant functions, for example, pitch, duration, and amplitude in speech. Individuals tend to prioritize these dimensions differently (stable, individualized perceptual strategies), but the reason for this has rem...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Psychological Association
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7133494/ https://www.ncbi.nlm.nih.gov/pubmed/31589067 http://dx.doi.org/10.1037/xge0000688 |
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author | Jasmin, Kyle Dick, Fred Holt, Lori L. Tierney, Adam |
author_facet | Jasmin, Kyle Dick, Fred Holt, Lori L. Tierney, Adam |
author_sort | Jasmin, Kyle |
collection | PubMed |
description | Perception involves integration of multiple dimensions that often serve overlapping, redundant functions, for example, pitch, duration, and amplitude in speech. Individuals tend to prioritize these dimensions differently (stable, individualized perceptual strategies), but the reason for this has remained unclear. Here we show that perceptual strategies relate to perceptual abilities. In a speech cue weighting experiment (trial N = 990), we first demonstrate that individuals with a severe deficit for pitch perception (congenital amusics; N = 11) categorize linguistic stimuli similarly to controls (N = 11) when the main distinguishing cue is duration, which they perceive normally. In contrast, in a prosodic task where pitch cues are the main distinguishing factor, we show that amusics place less importance on pitch and instead rely more on duration cues—even when pitch differences in the stimuli are large enough for amusics to discern. In a second experiment testing musical and prosodic phrase interpretation (N = 16 amusics; 15 controls), we found that relying on duration allowed amusics to overcome their pitch deficits to perceive speech and music successfully. We conclude that auditory signals, because of their redundant nature, are robust to impairments for specific dimensions, and that optimal speech and music perception strategies depend not only on invariant acoustic dimensions (the physical signal), but on perceptual dimensions whose precision varies across individuals. Computational models of speech perception (indeed, all types of perception involving redundant cues e.g., vision and touch) should therefore aim to account for the precision of perceptual dimensions and characterize individuals as well as groups. |
format | Online Article Text |
id | pubmed-7133494 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Psychological Association |
record_format | MEDLINE/PubMed |
spelling | pubmed-71334942020-04-13 Tailored Perception: Individuals’ Speech and Music Perception Strategies Fit Their Perceptual Abilities Jasmin, Kyle Dick, Fred Holt, Lori L. Tierney, Adam J Exp Psychol Gen Articles Perception involves integration of multiple dimensions that often serve overlapping, redundant functions, for example, pitch, duration, and amplitude in speech. Individuals tend to prioritize these dimensions differently (stable, individualized perceptual strategies), but the reason for this has remained unclear. Here we show that perceptual strategies relate to perceptual abilities. In a speech cue weighting experiment (trial N = 990), we first demonstrate that individuals with a severe deficit for pitch perception (congenital amusics; N = 11) categorize linguistic stimuli similarly to controls (N = 11) when the main distinguishing cue is duration, which they perceive normally. In contrast, in a prosodic task where pitch cues are the main distinguishing factor, we show that amusics place less importance on pitch and instead rely more on duration cues—even when pitch differences in the stimuli are large enough for amusics to discern. In a second experiment testing musical and prosodic phrase interpretation (N = 16 amusics; 15 controls), we found that relying on duration allowed amusics to overcome their pitch deficits to perceive speech and music successfully. We conclude that auditory signals, because of their redundant nature, are robust to impairments for specific dimensions, and that optimal speech and music perception strategies depend not only on invariant acoustic dimensions (the physical signal), but on perceptual dimensions whose precision varies across individuals. Computational models of speech perception (indeed, all types of perception involving redundant cues e.g., vision and touch) should therefore aim to account for the precision of perceptual dimensions and characterize individuals as well as groups. American Psychological Association 2019-10-07 2020-05 /pmc/articles/PMC7133494/ /pubmed/31589067 http://dx.doi.org/10.1037/xge0000688 Text en © 2019 The Author(s) http://creativecommons.org/licenses/by/3.0/ This article has been published under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Copyright for this article is retained by the author(s). Author(s) grant(s) the American Psychological Association the exclusive right to publish the article and identify itself as the original publisher. |
spellingShingle | Articles Jasmin, Kyle Dick, Fred Holt, Lori L. Tierney, Adam Tailored Perception: Individuals’ Speech and Music Perception Strategies Fit Their Perceptual Abilities |
title | Tailored Perception: Individuals’ Speech and Music Perception Strategies Fit Their Perceptual Abilities |
title_full | Tailored Perception: Individuals’ Speech and Music Perception Strategies Fit Their Perceptual Abilities |
title_fullStr | Tailored Perception: Individuals’ Speech and Music Perception Strategies Fit Their Perceptual Abilities |
title_full_unstemmed | Tailored Perception: Individuals’ Speech and Music Perception Strategies Fit Their Perceptual Abilities |
title_short | Tailored Perception: Individuals’ Speech and Music Perception Strategies Fit Their Perceptual Abilities |
title_sort | tailored perception: individuals’ speech and music perception strategies fit their perceptual abilities |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7133494/ https://www.ncbi.nlm.nih.gov/pubmed/31589067 http://dx.doi.org/10.1037/xge0000688 |
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