Ling D
J Otolaryngol. 1977 Aug;6(4):309-13.
The prevalence of hearing impairment and the educational effects of untreated hearing problems are described and the conditions required for verbal learning among severely and profoundly hearing-impaired children are outlined. Results of a longitudinal study undertaken at McGill University are briefly presented and the spoken language skills acquired by profoundly hearing-impaired children enrolled in this study are discussed.
文中描述了听力障碍的患病率以及未经治疗的听力问题对教育的影响，并概述了重度和极重度听力障碍儿童进行语言学习所需的条件。简要介绍了麦吉尔大学进行的一项纵向研究的结果，并讨论了参与该研究的极重度听力障碍儿童所获得的口语技能。
