Osberger M J, Maso M, Sam L K
Indiana University School of Medicine, Indianapolis.
J Speech Hear Res. 1993 Feb;36(1):186-203. doi: 10.1044/jshr.3601.186.
Speech intelligibility was measured in 31 children who used the 3M/House single-channel implant (n = 12), the Nucleus 22-Channel Cochlear Implant System (n = 15), or the Tactaid II + two-channel vibrotactile aid (n = 4). The subjects were divided into subgroups based on age at onset of deafness (early or late). The speech intelligibility of the experimental subjects was compared to that of children who were profoundly hearing impaired who used conventional hearing aids (n = 12) or no sensory aid (n = 2). The subjects with early onset of deafness who received their single- or multichannel cochlear implant before age 10 demonstrated the highest speech intelligibility, whereas subjects who did not receive their device until after age 10 had the poorest speech intelligibility. There was no obvious difference in the speech intelligibility scores of these subjects as a function of type of device (implant or tactile aid). On the average, the postimplant or tactile aid speech intelligibility of the subjects with early onset of deafness was similar to that of hearing aid users with hearing levels between 100 and 110 dB HL and limited hearing in the high frequencies. The speech intelligibility of subjects with late onset of deafness showed marked deterioration after the onset of deafness with relatively large improvements by most subjects after they received a single- or multichannel implant. The one subject with late onset of deafness who used a tactile aid showed no improvement in speech intelligibility.
对31名儿童的言语可懂度进行了测量，这些儿童分别使用3M/豪斯单通道植入物（n = 12）、Nucleus 22通道人工耳蜗系统（n = 15）或Tactaid II +双通道触觉辅助装置（n = 4）。根据耳聋发病年龄（早发或晚发）将受试者分为亚组。将实验受试者的言语可懂度与使用传统助听器（n = 12）或未使用感觉辅助装置（n = 2）的重度听力受损儿童的言语可懂度进行比较。在10岁之前接受单通道或多通道人工耳蜗植入的早发性耳聋受试者表现出最高的言语可懂度，而直到10岁以后才接受装置的受试者言语可懂度最差。这些受试者的言语可懂度得分在装置类型（植入物或触觉辅助装置）方面没有明显差异。平均而言，早发性耳聋受试者植入后或使用触觉辅助装置后的言语可懂度与听力水平在100至110 dB HL之间且高频听力有限的助听器使用者相似。晚发性耳聋受试者的言语可懂度在耳聋发病后明显下降，大多数受试者在接受单通道或多通道植入后有较大改善。一名使用触觉辅助装置的晚发性耳聋受试者的言语可懂度没有改善。
