SPEED AND CEREBRAL CORRELATES OF SYLLABLE DISCRIMINATION IN INFANTS

被引:228
作者
DEHAENELAMBERTZ, G
DEHAENE, S
机构
[1] CNRS,SCI COGNIT & PSYCHOLINGUIST LAB,INSERM,F-75270 PARIS 06,FRANCE
[2] EHESS,F-75270 PARIS 06,FRANCE
关键词
D O I
10.1038/370292a0
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
THE remarkable linguistic abilities of human neonates are well documented(1-5). Young infants can discriminate phonemes even if they are not used in their native language(2-4), an ability which regresses during the first year of life(4,5). This ability to discriminate is often studied by repeating a stimulus for several minutes until some behavioural response of the infant habituates, and later examining whether the response recovers when the stimulus is changed(6). This method, however, does not reveal how fast infants can detect phonetic changes, nor what brain mechanisms are involved. We describe here high-density recordings of event-related potentials in three-month-old infants listening to syllables whose first consonants differed in place of articulation Two processing stages, corresponding to an increasingly refined analysis of the auditory input, were identified and localised to the temporal lobes. A late frontal response to novelty was also observed. The infant brain recognizes a phonetic change in less than 400 ms.
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页码:292 / 295
页数:4
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