Sleeping newborns extract prosody from continuous speech
Sleeping newborns extract prosody from continuous speech
复制标题
DOI：
10.1016/j.clinph.2007.09.144
复制
发表时间：
2008-02-01
影响因子：
4.7
通讯作者：
Huotilainen, Minna
中科院分区：
文献类型：
--
作者：
Sambeth, Anke;Ruohio, Katja;Huotilainen, Minna
目的：行为实验表明，婴儿在习得语言时同时使用韵律和统计线索。然而，目前尚不清楚这些韵律和统计工具是否在出生时就已经存在。方法：我们记录了睡眠新生儿对富含韵律的自然声音（即歌唱和连续言语）以及两种贫乏的言语操作的大脑反应。共有11名新生儿提出了连续的讲话，唱歌，和退化的语音，而MEG recorded.Results：我们发现，大脑反应引起的韵律丰富的歌唱和连续的自然语音条件下显着下降时，在语音的韵律是贫穷的。结论：我们认为，这种反应是婴儿对语言中韵律线索敏感性的指标，这种敏感性在婴儿出生时自然睡眠时就已经存在。韵律检测的指标可能是至关重要的，在评估正常和异常的皮质功能的新生儿，特别是那些婴儿的语言问题的风险。(c)2007年国际临床神经生理学联合会。由Elsevier爱尔兰有限公司出版。保留所有权利。
Objective: Behavioral experiments show that infants use both prosodic and statistical cues in acquiring language. However, it is not yet clear whether these prosodic and statistical tools are already present at birth.Methods: We recorded brain responses of sleeping newborns to natural sounds rich in prosody, namely singing and continuous speech, and to two impoverished manipulations of speech. A total of 11 newborns were presented with continuous speech, singing, and degraded speech, while MEG was recorded.Results: We found that a brain response elicited to the prosodically rich singing and continuous natural speech conditions decreased dramatically when the prosody in the speech was impoverished.Conclusions: We claim that this response is the indicator of the infants' sensitivity to prosodic cues in language, which is already present at birth during natural sleep.Significance: The indicators of detection of prosody may be crucial in assessing the normal and abnormal cortical function in newborns, especially of those infants at-risk for language problems. (c) 2007 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.