Journal
BRITISH JOURNAL OF AUDIOLOGY
Volume 34, Issue 6, Pages 363-374Publisher
WHURR PUBLISHERS LTD
DOI: 10.3109/03005364000000152
Keywords
developmental changes; phonological contrasts; speechreading
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The purpose of the present study was to determine whether the ability to speechread phonological contrasts is influenced by age. Forty-eight subjects were equally represented in three age groups: 8-9 years, 11-12 years and adults (20-29 years). The Hebrew version of the Speech Pattern Contrast (HeSPAC) test was administered by speechreading alone. Results showed that: age influenced performance; performance was contrast-dependent (place contrasts highly visible, manner and vowel height partially visible and voicing contrast invisible); hierarchy of contrast performance was similar for all age groups: Hebrew and English differ in the visual accessibility to speech contrasts in final voicing only: and females were found to be poorer speechreaders than males for the partially visible contrasts. The results suggest that speechreading at the phonological level follows a developmental course. The implications of these findings extend to recommendations provided to children in noisy listening conditions, speechreading training in hearing-impaired children and those with central auditory processing disorders (CAPD), and to the design of sensory aids.
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