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Related Concept Videos

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The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
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fMRI Mapping of Brain Activity Associated with the Vocal Production of Consonant and Dissonant Intervals
11:15

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Published on: May 23, 2017

American and Swedish children's acquisition of vowel duration: effects of vowel identity and final stop voicing.

Eugene H Buder1, Carol Stoel-Gammon

  • 1The University of Memphis, School of Audiology and Speech-Language Pathology, Tennessee 38105, USA.

The Journal of the Acoustical Society of America
|May 11, 2002
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Summary

Children

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Area of Science:

  • Phonetics
  • Developmental Linguistics
  • Child Language Acquisition

Background:

  • Vowel duration varies due to intrinsic and extrinsic factors.
  • These variations may stem from innate predispositions and learned behaviors.
  • Early speech acquisition involves complex phonetic and cognitive processes.

Purpose of the Study:

  • To investigate if universal phonetic predispositions precede language-specific learning in children.
  • To test the hypothesis that final consonant voicing effects emerge before intrinsic vowel effects.
  • To analyze acoustic phonetic data from Swedish and American children aged 24 and 30 months.

Main Methods:

  • Acoustic phonetic analysis of 443 monosyllabic tokens.
  • Data collected from Swedish and American children (24 and 30 months old).
  • Statistical analysis at group and individual levels.

Main Results:

  • Swedish children showed early sensitivity to final consonant voicing effects on vowel duration.
  • Intrinsic vowel identity effects became more prominent in Swedish children by 30 months.
  • Young children demonstrated a focus on specific acoustic contrasts in vowel production.

Conclusions:

  • Early vowel acquisition involves a interplay between universal articulatory predispositions and language-specific phonetic features.
  • Phonetic context, like final consonant voicing, influences early vowel duration patterns.
  • Language-specific learning refines vowel production, building upon foundational phonetic tendencies.