Normative data on audiovisual speech integration using sentence recognition and capacity measures.

Normative data on audiovisual speech integration using sentence recognition and capacity measures.

Int J Audiol. 2016 Feb 6;:1-9

Authors: Altieri N, Hudock D

Abstract
OBJECTIVE: The ability to use visual speech cues and integrate them with auditory information is important, especially in noisy environments and for hearing-impaired (HI) listeners. Providing data on measures of integration skills that encompass accuracy and processing speed will benefit researchers and clinicians.
DESIGN: The study consisted of two experiments: First, accuracy scores were obtained using City University of New York (CUNY) sentences, and capacity measures that assessed reaction-time distributions were obtained from a monosyllabic word recognition task.
STUDY SAMPLE: We report data on two measures of integration obtained from a sample comprised of 86 young and middle-age adult listeners: Results: To summarize our results, capacity showed a positive correlation with accuracy measures of audiovisual benefit obtained from sentence recognition. More relevant, factor analysis indicated that a single-factor model captured audiovisual speech integration better than models containing more factors. Capacity exhibited strong loadings on the factor, while the accuracy-based measures from sentence recognition exhibited weaker loadings.
CONCLUSIONS: Results suggest that a listener's integration skills may be assessed optimally using a measure that incorporates both processing speed and accuracy.

PMID: 26853446 [PubMed - as supplied by publisher]

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