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The relationship between verbal ability and sentence-based speechreading.

B Lyxell1, J Rönnberg

  • 1Department of Psychology, University of Umeå, Sweden.

Scandinavian Audiology
|January 1, 1992
PubMed
Summary
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Lexical access speed, not vocabulary size, directly impacts speechreading in hearing-impaired individuals. Slow lexical access suggests prioritizing speechreading alternatives in rehabilitation programs.

Area of Science:

  • Audiology
  • Speech and Hearing Sciences
  • Cognitive Psychology

Background:

  • Speechreading is a crucial communication skill for hearing-impaired individuals.
  • Understanding the cognitive underpinnings of speechreading is essential for effective rehabilitation.

Purpose of the Study:

  • To investigate the relationship between verbal ability and speechreading performance in hearing-impaired subjects.
  • To determine if vocabulary size or lexical access speed is more directly related to speechreading ability.

Main Methods:

  • Eighteen hearing-impaired participants were assessed.
  • Verbal ability was measured using a vocabulary size test and four lexical access speed tests.
  • Speechreading performance was evaluated as the criterion measure.

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Main Results:

  • Lexical access speed demonstrated a significant relationship with speechreading performance.
  • Vocabulary size was not directly correlated with speechreading ability.
  • Vocabulary size influenced speechreading indirectly through its association with lexical access speed.

Conclusions:

  • Lexical access speed is a key factor in speechreading ability for hearing-impaired individuals.
  • Slow lexical access may indicate a need for rehabilitation programs focusing on alternatives to speechreading.
  • The indirect influence of variables on speechreading highlights the complexity of the relationship between verbal ability and visual speech perception.