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作者们通过对大量声损伤的士兵及非军人进行测验,感到有必要对声损伤的严重度进行特殊分级,冀有助于迅速和准确评价,对伤残补偿和预防提供依据。研究目的是应用这样一种分类系统于纯音测听的结果,作者们考虑到在隔音室所作的语言测听,并不能精确地反映出声损伤所致的实际障碍。Cooper(1976)对450只患耳作了测试,发现其平均语言识别率虽高,但所有患者都感到在日常生活中有些听觉困难。在作者们的方案中,听觉丧失是根据日常语言能力,不仅按照听力保护委员会提出的标准、而且根据患者的主诉和症状。该方案建立在Klockhoff等(1973)所建议的
By testing a large number of soldiers and non-military victims of sound damage, the authors find it necessary to have a special grading of the severity of the acoustic injury, which will help promptly and accurately evaluate the basis for disability compensation and prevention. The purpose of the study was to apply such a classification system as a result of pure tone audiometry. The authors considered the verbal audiometry performed in soundproof rooms and did not accurately reflect the actual obstacles caused by acoustic damage. Cooper (1976) tested 450 affected ears and found that although their average speech recognition rate was high, all patients felt some hearing difficulties in their daily lives. In the authors’ scheme, hearing loss is based on everyday language proficiency, not only on the criteria set by the Hearing Protection Committee, but also on the patient’s complaints and symptoms. This scheme is based on the one proposed by Klockhoff et al. (1973)