Sitler R W, Schiavetti N, Metz D E
J Speech Hear Res. 1983 Mar;26(1):30-5. doi: 10.1044/jshr.2601.30.
Previous research has indicated that hearing-impaired speakers' intelligibility scores are better when sentences are used than when word lists are used as speech material in word identification tests. The speech intelligibility of 20 hearing-impaired speakers was measured with word identification tests using isolated words (W-22 monosyllables) and words in sentence context (CID sentences). Analysis of individual speakers' intelligibility data revealed that sentence intelligibility scores were higher than word intelligibility scores only for the better speakers and that no differences were apparent between sentence and single-word intelligibility for the poorer speakers. These findings agree with the results of research with normal speech degraded in intelligibility by noise or filtering and indicate that an interaction may exist between context and overall intelligibility in which only speech that has a certain degree of overall intelligibility may show further intelligibility improvement with increased contextual clues.
先前的研究表明，在单词识别测试中，当使用句子作为语音材料时，听力受损者的可懂度得分要高于使用单词列表时。使用孤立单词（W-22单音节词）和句子语境中的单词（CID句子），通过单词识别测试对20名听力受损者的言语可懂度进行了测量。对个体可懂度数据的分析表明，只有水平较高的听力受损者的句子可懂度得分高于单词可懂度得分，而水平较差的听力受损者在句子和单个单词的可懂度方面没有明显差异。这些发现与正常语音因噪声或滤波而导致可懂度下降的研究结果一致，并表明语境与整体可懂度之间可能存在一种相互作用，即只有具有一定程度整体可懂度的语音，才可能随着语境线索的增加而进一步提高可懂度。
