McConachie H
Department of Neurology and Developmental Paediatrics, Wolfson Centre, Mecklenburgh Square, London.
Child Care Health Dev. 1990 Jan-Feb;16(1):55-61. doi: 10.1111/j.1365-2214.1990.tb00638.x.
Some blind children show an early facility with expressive language in advance of their true level of comprehension; children who have severely impaired vision, but use visually-directed reaching, do not. Inspection of developmental assessments of 40 blind and very severely visually impaired children with no other disability, seen at the Wolfson Centre, London, confirmed these patterns. However, a considerable number of blind children showed a lag in expressive speech relative to comprehension, which might mean first words appearing as late as 2 years of age. Later assessments of this group of children showed mixed outcomes. Further prospective research is indicated as a basis for counselling parents.
一些失明儿童在表达性语言方面表现出早期能力，超过了他们真正的理解水平；而那些视力严重受损但使用视觉引导抓握的儿童则没有这种情况。对伦敦沃尔夫森中心收治的40名无其他残疾的失明和视力极严重受损儿童的发育评估检查证实了这些模式。然而，相当数量的失明儿童在表达性言语方面相对于理解能力存在滞后，这可能意味着他们最早在2岁时才开始说出第一个单词。对这组儿童的后续评估结果不一。有必要进行进一步的前瞻性研究，为家长咨询提供依据。
