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Speech Production From a Developmental Perspective.

Melissa A Redford1

  • 1Linguistics Department, University of Oregon, Eugene.

Journal of Speech, Language, and Hearing Research : JSLHR
|August 30, 2019
PubMed
Summary
This summary is machine-generated.

Speech production develops from early feedforward processes to later feedback control. This new theory explains how speech emerges from developmental stages, not just adult behavior.

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Area of Science:

  • Speech production and developmental linguistics.

Background:

  • Current speech production theories focus on adults, inadequately explaining developmental processes.
  • Adult speech behavior may emerge from earlier developmental stages.

Purpose of the Study:

  • To propose a developmentally sensitive theory of speech production.
  • To address limitations in existing adult-centric models.

Main Methods:

  • Reviewed theoretical assumptions of major adult speech production approaches.
  • Evaluated strengths and weaknesses against developmental patterns.
  • Developed a new theory based on a feedforward-first maturation hypothesis.

Main Results:

  • Speech production involves information-reduced perceptual and motoric forms (exemplars and schemas).
  • These forms define trajectories in a non-linguistic, endogenous perceptual-motor space.
  • Central feedback control develops later, linked to communication failures and self-concept.

Conclusions:

  • A developmental perspective is crucial for understanding speech production.
  • Speech acquisition involves building upon early perceptual-motor representations.
  • Feedback control emerges as a later developmental layer in speech production.