Lipreading and audiovisual speech recognition across the adult lifespan: Implications for audiovisual integration

Nancy Tye-Mmurray, Brent Spehar, Joel Myerson, Sandra Hale, Mitchell Sommers

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

In this study of visual (V-only) and audiovisual (AV) speech recognition in adults aged 22-92 years, the rate of age-related decrease in V-only performance was more than twice that in AV performance. Both auditory-only (A-only) and V-only performance were significant predictors of AV speech recognition, but age did not account for additional (unique) variance. Blurring the visual speech signal decreased speech recognition, and in AV conditions involving stimuli associated with equivalent unimodal performance for each participant, speech recognition remained constant from 22 to 92 years of age. Finally, principal components analysis revealed separate visual and auditory factors, but no evidence of an AV integration factor. Taken together, these results suggest that the benefit that comes from being able to see as well as hear a talker remains constant throughout adulthood and that changes in this AV advantage are entirely driven by age-related changes in unimodal visual and auditory speech recognition.

Original languageEnglish
Pages (from-to)380-389
Number of pages10
JournalPsychology and Aging
Volume31
Issue number4
DOIs
StatePublished - Jun 1 2016

Keywords

  • Audiovisual integration
  • Audiovisual speech advantage
  • Auditory enhancement
  • Lipreading
  • Visual enhancement

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