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Updated: Jun 13, 2025

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception
Published on: August 9, 2024
DIFFERENTIAL CONTRIBUTIONS OF THE SPECTRO-TEMPORAL AND VOCAL CHARACTERISTICS OF AUDITORY PSEUDOWORDS TO MULTIPLE
Simon Lacey1,2,3, Kaitlyn L Matthews4,5, A M Hoffmann4
1Department of Neurology, Penn State Health Milton S. Hershey Medical Center & Penn State College of Medicine, Hershey, PA 17033, USA.
Sound symbolism links word sounds to meaning. This study found that acoustic properties of pseudowords, like spectro-temporal variations and voice quality, influence perceived meaning, but this effect varies across different meaning domains.
Area of Science:
- Psycholinguistics
- Cognitive Science
- Acoustic Phonetics
Background:
- Sound symbolism suggests a non-arbitrary link between word sounds and meaning.
- Auditory pseudowords like 'bouba' and 'kiki' are used to study this phenomenon.
- Previous research linked pseudoword shape ratings to acoustic features and voice quality.
Purpose of the Study:
- To investigate how spectro-temporal and vocal parameters of auditory pseudowords map to meanings across various domains.
- To determine if the relationship between sound properties and perceived meaning is consistent across different semantic categories.
Main Methods:
- Participants rated auditory pseudowords on scales of categorical opposites across seven meaning domains.
- Representational dissimilarity matrices (RDMs) were used to analyze perceptual ratings.
- RDMs of ratings were correlated with RDMs of acoustic parameters (spectro-temporal and voice quality).
Main Results:
- Replication of previous findings for the shape domain, showing correlations between ratings and acoustic features.
- Emergence of varying patterns of correlation for other meaning domains.
- Differential contribution of spectro-temporal and vocal properties to sound-symbolic mapping depending on the domain.
Conclusions:
- The acoustic properties of spoken pseudowords contribute to sound-symbolic mapping.
- The relationship between sound and meaning is domain-specific, not universal.
- This highlights the nuanced interplay between phonetics and semantics in sound symbolism.
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