Cainer Kathryn E, James C, Rajan R
Department of Physiology, Monash University, Monash, VIC 3800, Australia.
Hear Res. 2008 Apr;238(1-2):155-64. doi: 10.1016/j.heares.2007.10.001. Epub 2007 Oct 18.
This manuscript reports the results of two studies on development of a test bank of sentences for use in study of learning of speech-in-noise (SIN) discrimination. Sentences were derived from the sentence lists of Bench et al., 1979 [Bench, J., Kowal, A., Bamford, J., 1979. The BKB (Bamford-Kowal-Bench) sentence lists for partially-hearing children. Brit. J. Audiol. 13, 108-112]. In the first study these sentences were grouped into three different lists (each of 40 sentences) based on their previously-determined speech reception thresholds (SRTs), and used to study SIN discrimination. In each test with 40 sentences in the SIN task, within-session performance asymptoted rapidly, independent of masker type, sex of subjects, and type of sentence. Then, in a second study, six lists of sentences were created to study learning of SIN discrimination, in a new group of subjects. It was found that across-session learning was rapid regardless of noise type, and the same general pattern of learning occurred regardless of noise type; however the amount of learning differed, with a slightly greater amount of learning occurring in the condition with the more difficult noise masker.
本手稿报告了两项关于开发用于言语噪声（SIN）辨别学习研究的句子题库的研究结果。句子源自Bench等人1979年的句子列表[Bench, J., Kowal, A., Bamford, J., 1979. 用于部分听力儿童的BKB（Bamford-Kowal-Bench）句子列表。《英国听力学杂志》13, 108 - 112]。在第一项研究中，这些句子根据先前确定的言语接受阈值（SRT）被分为三个不同的列表（每个列表40个句子），并用于研究SIN辨别。在SIN任务中每次包含40个句子的测试中，会话内表现迅速趋于平稳，与掩蔽类型、受试者性别和句子类型无关。然后，在第二项研究中，为一组新的受试者创建了六个句子列表以研究SIN辨别学习。结果发现，无论噪声类型如何，跨会话学习都很快，并且无论噪声类型如何，学习的总体模式相同；然而学习量有所不同，在噪声掩蔽更困难的条件下学习量略多。
