First-Language Acquisition in Adolescence: Evidence for a Critical Period for Verbal Language Development
First-Language Acquisition in Adolescence: Evidence for a Critical Period for Verbal Language Development
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青春期第一语言习得：口头语言发展关键时期的证据
DOI：
10.1006/brln.1997.1943
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发表时间：
1998
影响因子：
2.5
通讯作者：
G.E MacKinnon
中科院分区：
文献类型：
--
作者：
Gina M. Grimshaw;A. Adelstein;M. Bryden;G.E MacKinnon
据推测，有一个关键时期的第一语言习得，延长到儿童后期，可能直到青春期。这一假设很难直接验证，因为幸运的是，儿童时期语言被剥夺的情况很少。我们在此介绍E.M.的案例，他是一个年轻人，从出生起就严重失聪，在农村地区长大，没有接受过正规教育，也没有与聋人社区接触。15岁时，E.M.戴上助听器后，他的听力损失矫正到了35分贝，他开始学习西班牙语口语。我们描述了他的语言发展超过4年的时间，因为他的收购助听器，并得出结论，在言语理解和生产，支持关键期假说的表现出严重的赤字。
It has been hypothesized that there is a critical period for first-language acquisition that extends into late childhood and possibly until puberty. The hypothesis is difficult to test directly because cases of linguistic deprivation during childhood are fortunately rare. We present here the case of E.M., a young man who has been profoundly deaf since birth and grew up in a rural area where he received no formal education and had no contact with the deaf community. At the age of 15, E.M. was fitted with hearing aids that corrected his hearing loss to 35 dB, and he began to learn verbal Spanish. We describe his language development over the 4-year period since his acquisition of hearing aids and conclude that the demonstrates severe deficits in verbal comprehension and production that support the critical period hypothesis.