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Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception
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Communicative Context Affects Use of Referential Prosody.

Christina Y Tzeng1, Laura L Namy1, Lynne C Nygaard1

  • 1Department of Psychology, Emory University.

Cognitive Science
|November 20, 2019
PubMed
Summary
This summary is machine-generated.

Speakers use vocal pitch (prosody) to convey information when words are unclear. Listeners understand these vocal cues, especially in ambiguous situations, highlighting prosody's role in communication.

Keywords:
Communicative demandProsodyReferential ambiguitySemanticsVocal gesture

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Area of Science:

  • Psycholinguistics
  • Speech Communication
  • Cognitive Science

Background:

  • Referential communication relies on shared understanding between speakers and listeners.
  • Prosody, including pitch and intonation, plays a crucial role in conveying meaning beyond literal words.
  • Communicative demand can influence how speakers utilize non-lexical cues.

Purpose of the Study:

  • To investigate how communicative demand affects the use of referential prosody.
  • To determine if speakers produce distinct prosodic cues for ambiguous referents.
  • To examine whether listeners utilize prosody to resolve referential ambiguity.

Main Methods:

  • Speaker-listener dyads participated in a referential communication task.
  • Speakers described color swatches (bright vs. dark) to listeners.
  • Acoustic analysis of speech prosody (pitch) was conducted, correlating with trial ambiguity (ambiguous vs. unambiguous color pairs).

Main Results:

  • Speakers produced reliably higher pitch for 'bright' sentences compared to 'dark' sentences in ambiguous trials.
  • This pitch distinction was absent in unambiguous trials, indicating context-dependent prosodic modulation.
  • Listeners successfully identified the correct swatch in ambiguous trials, suggesting prosodic cue recruitment.

Conclusions:

  • Prosody serves as a vocal gesture that speakers recruit to resolve referential ambiguity under communicative demand.
  • Listeners actively use prosodic information to disambiguate referents when lexical cues are insufficient.
  • This study underscores the dynamic and functional role of prosody in effective communication.