JUDGEMENTS FOR HEARING AID FITTING IN CHILDREN

这项研究的长期目标是开发可靠和 敏感的主观判断程序，可以提供重要的 助听器性能的试配和验证信息 在孩子们身上。拟议调查的具体目标如下 如下：(1)确定感觉和认知过程的影响 论正常听证和听证中主观判断的形成 残疾儿童，(2)调查儿童之间的相互作用 听力损失程度与主观形成能力的关系 (三)执行主观判决程序。 两种助听器处方策略的知觉评价。在……里面 三个实验中的第一个，清晰度的感知维度将 以听力正常和轻度至中度听力障碍为判断标准 儿童(8-12岁)对带宽相等的句子的理解 和响度，但在频谱整形方面有所不同(均匀与高频 强调与低频强调)、频谱斜率(6分贝/倍频程与 3分贝/八度)和说话者数量(1比6)。主观性 判决将通过配对比较程序进行衡量， 纳入了信心评级。测试将在一个 用于衡量学习效果和记录效果的会议数量 对象间和对象内的可变性。演示了孩子的 能够区分不同的刺激条件对， 光谱形状和斜率的不同将决定感官成分。 认知成分将通过存在 响应模式中的传递性(逻辑运算)，可量化 通过信心评级。相同的设计将在 第二个实验，但将评估听力受损的儿童 年龄较小(5-8岁)，有不同程度的听力损失 (轻度至重度)。第三个实验将结合主观的 将判决程序纳入儿科助听器评估程序。 听力障碍儿童将判断所处理的句子的清晰度 由两种助听器规定的策略，其中一种是为线性 放大(NAL-R)和为宽动态范围开发的另一种 压缩(DSL[I/O])。主观判断将被衡量 系统地使用在Soft、Medium和 输入音量很大。结果应该确定听力受损的人 孩子们能够区分不同的处方 战略，以及清晰度偏好是否可靠和敏感。

The long term objective of this research is to develop reliable and sensitive subjective judgment procedures that can provide important information to the fitting and verification of hearing aid performance in children. The specific aims of the proposed investigation are as follows: (1) to determine the effects of sensory and cognitive processes on the formation of subjective judgments in normal-hearing and hearing- impaired children, (2) to investigate the interaction between development and degree of hearing loss on the ability to form subjective judgments, and (3) to implement a subjective judgment procedure in the perceptual evaluation of two hearing aid prescriptive strategies. In the first of three experiments, the perceptual dimension of clarity will be judged by normal-hearing and mild to moderately hearing-impaired children (ages 8-12 years) for sentences that are equated in bandwidth and loudness but vary in spectral shaping (uniform vs. high-frequency emphasis vs. low-frequency emphasis), spectral slope (6 dB/octave vs. 3 dB/octave) and number of talkers (one versus six). Subjective judgments will be measured by a paired comparison procedure that incorporates a confidence rating. Testing will be conducted over a number of sessions to measure the effects of learning and to document the inter-and intrasubject variability. Demonstration of the child's ability to discriminate from among pairs of stimulus conditions that differ in spectral shape and slope will determine the sensory component. The cognitive component will be ascertained through the existence of transitivities (logical operations) in response patterns, quantifiable by the confidence ratings. The same design will be implemented in a second experiment, but will evaluate hearing-impaired children of younger ages (5-8 years) and with different degrees of hearing loss (mild to severe). The third experiment will incorporate the subjective judgment procedure into the pediatric hearing aid evaluation process. Hearing-impaired children will judge the clarity of sentences processed by two hearing aid prescriptive strategies, one developed for linear amplification (NAL-R) and another developed for wide dynamic range compression (DSL[i/o]). Subjective judgements will be measured systematically using different talkers presented at soft, medium, and loud input levels. Results should determine whether hearing-impaired children are able to distinguish between different prescriptive strategies and whether clarity preferences are reliable and sensitive.