The role of temporal cues in word identification by younger and older adults: Effects of sentence context
| Autor: | Peter J. Fitzgibbons, Grace H. Yeni-Komshian, Sandra Gordon-Salant |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Adult
Aging medicine.medical_specialty Sound Spectrography Time Factors Speech perception Acoustics and Ultrasonics media_common.quotation_subject Context (language use) Speech Perception [71] Audiology behavioral disciplines and activities Arts and Humanities (miscellaneous) Phonetics Vowel Perception otorhinolaryngologic diseases medicine Humans Speech Aged Language media_common Context effect Speech Intelligibility Recognition Psychology Middle Aged humanities Linguistics Speech Perception Cues Percept Comprehension Psychology psychological phenomena and processes Sentence |
| Zdroj: | The Journal of the Acoustical Society of America. 124:3249-3260 |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/1.2982409 |
| Popis: | Prior investigations, using isolated words as stimuli, have shown that older listeners tend to require longer temporal cues than younger listeners to switch their percept from one word to its phonetically contrasting counterpart. The extent to which this age effect occurs in sentence contexts is investigated in the present study. The hypothesis was that perception of temporal cues differs for words presented in isolation and a sentence context and that this effect may vary between younger and older listeners. Younger and older listeners with normal-hearing and older listeners with hearing loss identified phonetically contrasting word pairs in natural speech continua that varied by a single temporal cue: voice-onset time, vowel duration, transition duration, and silent interval duration. The words were presented in isolation and in sentences. A context effect was shown for most continua, in which listeners required longer temporal cues in sentences than in isolated words. Additionally, older listeners required longer cues at the crossover points than younger listeners for most but not all continua. In general, the findings support the conclusion that older listeners tend to require longer target temporal cues than younger normal-hearing listeners in identifying phonetically contrasting word pairs in isolation and sentence contexts. |
| Databáze: | OpenAIRE |
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