Richman L C, Eliason M
Cleft Palate J. 1984 Jan;21(1):1-6.
Two groups of cleft palate subtypes (cleft lip and palate and cleft palate only) with reading disability, matched for intelligence, age, sex, and reading level, were compared on reading and neuropsychological test variables. Subjects included 14 males and 10 females of each cleft type ranging in age from 8 to 13. Results showed a significant difference between groups on most language measures and differences in reading comprehension and type of reading errors. Results suggest that children with cleft palate only constitute a language-disorder group with more severe reading disabilities. Children with cleft lip and palate are more likely to have verbal expressive deficits and milder reading problems, possibly related to peripheral speech mechanisms.
对两组患有阅读障碍的腭裂亚型（唇腭裂和单纯腭裂）患者进行了比较，这两组在智力、年龄、性别和阅读水平方面相匹配，比较内容为阅读和神经心理学测试变量。受试者包括每种腭裂类型的14名男性和10名女性，年龄在8至13岁之间。结果显示，在大多数语言测量指标上，两组之间存在显著差异，在阅读理解和阅读错误类型方面也存在差异。结果表明，单纯腭裂儿童构成了一个语言障碍组，阅读障碍更为严重。唇腭裂儿童更有可能存在言语表达缺陷和较轻微的阅读问题，这可能与外周言语机制有关。
