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Phonetic convergence enhances speech intelligibility.

Josh Dorsi1, James W Dias2, Serena Zadoorian3

  • 1Department of Neurology, Milton S. Hershey Medical Center, Penn State College of Medicine, 30 Long Lane, Hershey, PA, 17033, USA. jdorsi@pennstatehealth.psu.edu.

Attention, Perception & Psychophysics
|March 12, 2025
PubMed
Summary
This summary is machine-generated.

Phonetic convergence, where speech styles align, was found to improve speech perception. Participants better understood speech from talkers who mirrored their own speech patterns, suggesting alignment aids comprehension.

Keywords:
Speech perception

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Area of Science:

  • Psycholinguistics
  • Speech Communication
  • Cognitive Science

Background:

  • Phonetic convergence is a phenomenon where individuals unconsciously adjust their speech patterns to match those of their conversational partners.
  • While several factors may drive phonetic convergence, its potential role in enhancing speech perception remains an active area of research.

Purpose of the Study:

  • This study investigated whether phonetic convergence facilitates speech perception in adult native-English speakers.
  • The research aimed to determine if listeners could more accurately perceive speech from talkers exhibiting phonetic convergence.

Main Methods:

  • Adult participants (n=9) listened to words-in-noise produced by two groups of talkers: Associated Shadowers, who shadowed the participant's speech, and Unassociated Shadowers, who shadowed another participant's speech.
  • A separate group of raters (n=45) confirmed the acoustic similarity between Associated Shadowers and the participant they shadowed using an AXB similarity-matching task.

Main Results:

  • Participants demonstrated significantly higher accuracy in identifying speech from Associated Shadowers compared to Unassociated Shadowers.
  • A positive correlation was observed between the rated similarity of speech and the accuracy of speech perception for Associated Shadowers.

Conclusions:

  • The findings support the hypothesis that phonetic convergence can enhance speech understanding between individuals.
  • This study provides empirical evidence that aligning speech patterns may serve a functional role in improving auditory comprehension.