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Cracking the social code of speech prosody using reverse correlation.

Emmanuel Ponsot1,2,3, Juan José Burred4, Pascal Belin5,6,7

  • 1Sciences et Technologies de la Musique et du Son, UMR 9912, Institut de Recherche et Coordination Acoustique/Musique, CNRS and Sorbonne Universitè, 75004 Paris, France; emmanuel.ponsot@ens.fr.

Proceedings of the National Academy of Sciences of the United States of America
|March 28, 2018
PubMed
Summary
This summary is machine-generated.

Pitch intonation patterns, not just average pitch, significantly shape social judgments of dominance and trustworthiness in speech. These vocal cues remain stable across different speakers and listeners, revealing a key aspect of human social communication.

Keywords:
prosodyreverse-correlationsocial traitsspeechvoice

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Area of Science:

  • Psychology
  • Linguistics
  • Acoustics

Background:

  • Human listeners form social impressions from speech, with pitch being a key information carrier.
  • Previous research focused on mean pitch, neglecting the role of pitch intonation patterns.

Purpose of the Study:

  • Investigate how pitch intonation patterns influence social judgments of dominance and trustworthiness.
  • Identify stable vocal cues for social trait inference.

Main Methods:

  • Utilized advanced voice transformation algorithms.
  • Employed psychophysical reverse correlation techniques.
  • Analyzed listener judgments on short utterances like "Hello."

Main Results:

  • Perceived dominance and trustworthiness are driven by specific pitch trajectories.
  • These pitch patterns are robust and stable across different speaker and listener sexes.
  • Social judgments are inferred independently of mean pitch and speaker sex.

Conclusions:

  • Pitch intonation patterns are crucial for rapid social trait inference in speech.
  • This reveals a communicative adaptation for social perception.
  • The methodology can aid in understanding social-cognitive deficits and modulating speech impressions.