Newman Rochelle, Ratner Nan Bernstein, Jusczyk Ann Marie, Jusczyk Peter W, Dow Kathy Ayala
Department of Hearing and Speech Sciences, University of Maryland, College Park, 20742, USA.
Dev Psychol. 2006 Jul;42(4):643-55. doi: 10.1037/0012-1649.42.4.643.
Two studies examined relationships between infants' early speech processing performance and later language and cognitive outcomes. Study 1 found that performance on speech segmentation tasks before 12 months of age related to expressive vocabulary at 24 months. However, performance on other tasks was not related to 2-year vocabulary. Study 2 assessed linguistic and cognitive skills at 4-6 years of age for children who had participated in segmentation studies as infants. Children who had been able to segment words from fluent speech scored higher on language measures, but not general IQ, as preschoolers. Results suggest that speech segmentation ability is an important prerequisite for successful language development, and they offer potential for developing measures to detect language impairment at an earlier age.
两项研究考察了婴儿早期言语处理能力与后期语言及认知发展结果之间的关系。研究1发现，12个月大之前的言语分割任务表现与24个月大时的表达性词汇量相关。然而，其他任务的表现与2岁时的词汇量无关。研究2评估了婴儿期参与过分割研究的儿童在4至6岁时的语言和认知技能。能够从流畅言语中分割出单词的儿童在学龄前的语言测试中得分更高，但在一般智商测试中得分不高。结果表明，言语分割能力是语言成功发展的重要前提，并且为开发在更早年龄检测语言障碍的方法提供了可能性。
