Niswander P S, Ruth R A
Am J Ment Defic. 1977 Mar;81(5):474-81.
The ability of the sensitivity prediction from acoustic reflex (SPAR) technique to estimate hearing loss in mentally retarded subjects was investigated by comparing measured pure-tone thresholds determined through tangible-reinforcement operant-conditioning audiometry with predicted sensitivity from the SPAR procedure. Measurements were completed on a total of 32 retarded individuals having hearing levels ranging from normal to profound hearing loss. With minor exception, absences of the acoustic reflex were always accompanied by clearly abnormal tympanometry findings in the probe ear; therefore, the problem of unexplained absences of the reflex appeared to be minimal. Hearing loss never was present in those subjects for which SPAR predicted normal hearing, and the SPAR procedure never failed to detect an existing sensorineural hearing loss. On the other hand, there was some tendency for hearing loss to be predicted in normal-hearing subjects and for extent of hearing loss to be overestimated in subjects having a hearing loss.
通过比较通过实物强化操作性条件测听法测得的纯音阈值与声反射（SPAR）技术预测的敏感度，研究了SPAR技术预测智力迟钝受试者听力损失的能力。对总共32名听力水平从正常到重度听力损失的智障个体进行了测量。除了少数例外情况，探测耳中声反射缺失总是伴随着明显异常的鼓室图结果；因此，反射无法解释的缺失问题似乎很小。SPAR预测听力正常的受试者中从未出现听力损失，并且SPAR程序从未未能检测到现有的感音神经性听力损失。另一方面，存在一些倾向，即在听力正常的受试者中预测有听力损失，而在有听力损失的受试者中高估听力损失的程度。
