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Facial expressions and speechreading performance

B Lyxell1, K Johansson, B Lidestam

  • 1Department of Education and Psychology, Linköping University, Sweden.

Scandinavian Audiology
|January 1, 1996
PubMed
Summary
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Facial expressions enhance visual speechreading (lipreading) for skilled individuals, particularly in word-level tasks. Confidence in responses also correlated with better lipreading performance.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Audiology

Background:

  • Visual speechreading, or lipreading, relies on processing visual cues from speech production.
  • Facial expressions are known to convey emotional and social information, potentially influencing communication.

Purpose of the Study:

  • To investigate the specific role of facial expressions in visual speechreading performance.
  • To determine if emotional expressions impact different types of speechreading tasks.
  • To explore the relationship between confidence and speechreading accuracy.

Main Methods:

  • Assessed speechreading using sentence-based speechreading, word-decoding, and word-discrimination tests.
  • Included 27 participants in the study.
  • Correlational analysis was used to examine relationships between variables.

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Main Results:

  • No overall improvement in speechreading was found across all tests due to facial expressions.
  • Skilled speechreaders showed significant performance gains in word-decoding and word-discrimination with emotional expressions.
  • A significant correlation was observed between response confidence and performance on tasks requiring lexical analysis.

Conclusions:

  • Facial expressions can modulate speechreading, especially for skilled readers in specific word-based tasks.
  • The integration of facial expression cues with lip movements is crucial for effective visual speechreading.
  • Confidence ratings may reflect the cognitive processes involved in speechreading, particularly lexical access.