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Centre for Policy on Ageing | |
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| The effects of context and feedback on age differences in spoken word recognition | | Author(s) | Elizabeth A L Stine-Morrow, Lisa M Soederberg Miller, John A Nevin |
| Journal title | The Journals of Gerontology Series B: Psychological sciences and social sciences, vol 54B, no 2, March 1999 |
| Pages | pp P125-P134 |
| Keywords | Cognitive processes ; Over 70s ; Young adults [20-25] ; United States of America. |
| Annotation | The authors investigated the hypothesis that age differences in speech discrimination would be reduced by enhancing the distinctiveness of the speech processing event in terms of both the context of encoding and the response outcome. Younger and older adults performed an auditory lexical decision task (i.e. recognising words) in which the degree of semantic constraint (context) and type of feedback were manipulated. Main effects of age indicated that older adults generally showed lower discriminability (D) and greater bias (B) toward reporting signals to be words. Consistent with the environmental support hypothesis, older adults were differentially facilitated in discriminability by feedback, but only when semantic context was provided. Also, for both younger and older adults, feedback and context each had the effect of reducing bias and facilitating the speed of rejecting non-words. Contrary to one suggestion in the literature that ageing brings an insensitivity to environmental contingency, older adults were at least as capable as the young in taking advantage of feedback to normalise the speech signal so as to increase discriminability and decrease bias. (RH). |
| Accession Number | CPA-990430006 A |
| Classmark | DA: BBK: SD6: 7T |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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