Hearing loss and perceptual effort: Downstream effects on older adults' memory for speech
Hearing loss and perceptual effort: Downstream effects on older adults' memory for speech
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DOI：
10.1080/02724980443000151
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发表时间：
2005-01-01
期刊：
影响因子：
--
通讯作者：
Wingfield, A
中科院分区：
文献类型：
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作者：
McCoy, SL;Tun, PA;Wingfield, A
一组听力良好的老年人和一组轻度至中度听力损失的老年人接受了测试，以回忆在跑步记忆任务中听到的最后三个单词。听力好的和听力差的参与者对三个词集合中最后一个词的回忆都近乎完美，这使得他们可以推断出所有三个词都被正确识别了。尽管如此，听力差的那组人回忆起的非最后一个单词明显少于听力好的那组人。即使两组人在年龄、教育程度和语言能力上都是匹配的，情况也是如此。结果被认为是支持一个努力假说：这一概念的额外努力，听力受损的听众必须花费，以实现感知的成功是在处理资源，否则可能是可用于编码的语音内容在内存中的成本。
A group of older adults with good hearing and a group with mild-to-moderate hearing loss were tested for recall of the final three words heard in a running memory task. Near perfect recall of the final words of the three-word sets by both good- and poor-hearing participants allowed the inference that all three words had been correctly identified. Nevertheless, the poor-hearing group recalled significantly fewer of the nonfinal words than did the better hearing group. This was true even though both groups were matched for age, education, and verbal ability. Results were taken as support for an effortfulness hypothesis: the notion that the extra effort that a hearing-impaired listener must expend to achieve perceptual success comes at the cost of processing resources that might otherwise be available for encoding the speech content in memory.