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Language development: a sensory development and signal processing perspective.

K E Hecox1

  • 1Project Phoenix of Madison, Inc., Nicolet Audiodiagnostics, Wisconsin 53711.

Research Publications - Association for Research in Nervous and Mental Disease
|January 1, 1988
PubMed
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Language development is not solely dependent on auditory input. Even with significant hearing loss, language skills can emerge, suggesting brain flexibility in processing sensory information.

Area of Science:

  • Neuroscience
  • Linguistics
  • Developmental Psychology

Background:

  • The link between sensory development and language maturation is not well understood.
  • Sophisticated manual communication systems demonstrate that auditory input isn't essential for all language development.
  • A common belief is that acoustic environment representation aids language acquisition.

Purpose of the Study:

  • To investigate if sensory representation accuracy limits language comprehension and production.
  • To explore the flexibility of brain mechanisms in language development despite sensory input variations.

Main Methods:

  • Review of studies on hearing-impaired individuals (acquired and congenital).
  • Behavioral comparisons of infants and hearing-impaired adults.

Related Experiment Videos

  • Electrophysiological comparisons of newborns and adults.

    • Main Results:

    • Language systems in hearing-impaired individuals show remarkable integrity despite auditory differences.
    • Behavioral and electrophysiological data suggest sufficient sensory representation for earlier language emergence than observed.
    • Age-related differences in language performance are not fully explained by diminished auditory sensitivity.

    Conclusions:

    • Language organization mechanisms appear relatively immune to significant sensory input alterations.
    • Brain mechanisms for language are flexible and can accommodate impoverished sensory representations.
    • Further research into "nonlinear processing mechanisms" may offer deeper insights.