ON THE NATURE OF TALKER VARIABILITY EFFECTS ON RECALL OF SPOKEN WORD LISTS
ON THE NATURE OF TALKER VARIABILITY EFFECTS ON RECALL OF SPOKEN WORD LISTS
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DOI：
10.1037/0278-7393.17.1.152
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发表时间：
1991-01-01
影响因子：
2.6
通讯作者：
LOGAN, JS
中科院分区：
文献类型：
--
作者：
GOLDINGER, SD;PISONI, DB;LOGAN, JS
在最近的一项研究中，Martin、Mullennix、Pisoni和Summers（1989）报告说，受试者在回忆口语单词列表时，当单词由一个说话者说出时，比由多个说话者说出时，对早期列表位置的单词的准确性更好。本研究旨在进一步详细研究这些影响的性质。序列顺序回忆的准确性进行了检查，由一个单一的谈话者或多个谈话者的话列表。根据词频、词汇邻域密度和邻域频率的综合指标，一半的列表包含容易识别的单词，一半包含更难的单词。演示率被操纵，以评估这两个变量对排练和知觉编码的影响。一个强大的相互作用，获得之间的谈话者的变异性和率的介绍。多人谈话者名单的召回的影响比单谈话者名单的变化，介绍率。在缓慢的呈现速率下，多个说话者在早期连续位置产生的单词实际上比单个说话者产生的单词更准确地被回忆起来。没有观察到相互作用的词混淆和介绍率。该数据提供支持的建议，说话者的变异性影响的准确性，召回口语的话，不仅增加了处理要求的早期感知编码的话，但也影响排练过程本身的效率。
In a recent study, Martin, Mullennix, Pisoni, and Summers (1989) reported that subjects' accuracy in recalling lists of spoken words was better for words in early list positions when the words were spoken by a single talker than when they were spoken by multiple talkers. The present study was conducted to examine the nature of these effects in further detail. Accuracy of serial-ordered recall was examined for lists of words spoken by either a single talker or by multiple talkers. Half the lists contained easily recognizable words, and half contained more difficult words, according to a combined metric of word frequency, lexical neighborhood density, and neighborhood frequency. Rate of presentation was manipulated to assess the effects of both variables on rehearsal and perceptual encoding. A strong interaction was obtained between talker variability and rate of presentation. Recall of multiple-talker lists was affected much more than single-talker lists by changes in presentation rate. At slow presentation rates, words in early serial positions produced by multiple talkers were actually recalled more accurately than words produced by a single talker. No interaction was observed for word confusability and rate of presentation. The data provide support for the proposal that talker variability affects the accuracy of recall of spoken words not only by increasing the processing demands for early perceptual encoding of the words, but also by affecting the efficiency of the rehearsal process itself.