Humes L E, Christopherson L
Department of Speech and Hearing Sciences, Indiana University, Bloomington.
J Speech Hear Res. 1991 Jun;34(3):686-93. doi: 10.1044/jshr.3403.686.
This study examined the performance of four subject groups on several temporally based measures of auditory processing and several measures of speech identification. The four subjects groups were (a) young normal-hearing adults; (b)-hearing-impaired elderly subjects ranging in age from 65 to 75 years; (c) hearing-impaired elderly adults ranging in age from 76 to 86 years; and (d) young normal-hearing listeners with hearing loss simulated with a spectrally shaped masking noise adjusted to match the actual hearing loss of the two elderly groups. In addition to between-group analyses of performance on the auditory processing and speech identification tasks, correlational and regression analyses within the two groups of elderly hearing-impaired listeners were performed. The results revealed that the threshold elevation accompanying sensorineural hearing loss was the primary factor affecting the speech identification performance of the hearing-impaired elderly subjects both as groups and as individuals. However, significant increases in the proportion of speech identification score variance accounted for were obtained in the elderly subjects by including various measures of auditory processing.
本研究考察了四组受试者在几种基于时间的听觉处理测量指标和几种言语识别测量指标上的表现。这四组受试者分别为：(a)听力正常的年轻成年人；(b)年龄在65岁至75岁之间的老年听力受损受试者；(c)年龄在76岁至86岁之间的老年听力受损成年人；以及(d)听力正常的年轻听众，其听力损失通过经频谱塑形的掩蔽噪声模拟，该噪声经过调整以匹配两组老年受试者的实际听力损失。除了对听觉处理和言语识别任务的表现进行组间分析外，还对两组老年听力受损听众进行了相关性分析和回归分析。结果显示，感音神经性听力损失伴随的阈值升高是影响老年听力受损受试者群体及个体言语识别表现的主要因素。然而，通过纳入各种听觉处理测量指标，老年受试者的言语识别分数方差所占比例有显著增加。
