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Hesitation phenomena: a dynamical perspective.

Sandra Merlo1, Plínio Almeida Barbosa

  • 1Speech Prosody Studies Group, Department of Linguistics, Instituto de Estudos da Linguagem (Institute of Language Studies), State University of Campinas (UNICAMP), CP 6045, Campinas, SP, 13083-970, Brazil. sgmerlo@gmail.com

Cognitive Processing
|November 17, 2009
PubMed
Summary
This summary is machine-generated.

Hesitation phenomena in spoken language are not random but occur in predictable cycles. This study found regular patterns in speech hesitations, suggesting they are stable and anticipatable linguistic events.

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Area of Science:

  • Linguistics
  • Psycholinguistics
  • Speech Production

Background:

  • Hesitations are common in spoken language.
  • Previous research has not established the distribution patterns of hesitations.

Purpose of the Study:

  • To investigate whether hesitation phenomena are periodically distributed in spoken language production.
  • To determine if hesitations follow predictable patterns rather than occurring randomly.

Main Methods:

  • Analysis of 20 semi-spontaneous speech samples from five healthy adult males.
  • Time series generation of speech data sampled at a 200 ms rate.
  • Application of Fourier analysis to identify periodic cycles in hesitation occurrences.

Main Results:

  • Speech time series were statistically stationary, indicating consistent fluency levels.
  • Fourier analysis revealed periodic cycles of hesitations in all speech samples.
  • Hesitations were not randomly distributed, with intervals of high and low occurrences alternating.

Conclusions:

  • Hesitation phenomena exhibit periodic and predictable patterns in spoken language.
  • The identified hesitation cycles (median 9s, mean 13s) align with macroplanning activities in language production.
  • Findings suggest parallel processing within working memory during spoken language generation.