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Proc Natl Acad Sci U S A. 2010 Apr 27;107(17):7939-44. doi: 10.1073/pnas.0904402107. Epub 2010 Apr 15.

Brain sensitivity to print emerges when children learn letter-speech sound correspondences.

Author information

1
Department of Psychology, University of Jyväskylä, Agora Center, 40014 Jyväskylä, Finland. sbrem@kjpd.uzh.ch

Abstract

The acquisition of reading skills is a major landmark process in a human's cognitive development. On the neural level, a new functional network develops during this time, as children typically learn to associate the well-known sounds of their spoken language with unfamiliar characters in alphabetic languages and finally access the meaning of written words, allowing for later reading. A critical component of the mature reading network located in the left occipito-temporal cortex, termed the "visual word-form system" (VWFS), exhibits print-sensitive activation in readers. When and how the sensitivity of the VWFS to print comes about remains an open question. In this study, we demonstrate the initiation of occipito-temporal cortex sensitivity to print using functional MRI (fMRI) (n = 16) and event-related potentials (ERP) (n = 32) in a controlled, longitudinal training study. Print sensitivity of fast (<250 ms) processes in posterior occipito-temporal brain regions accompanied basic associative learning of letter-speech sound correspondences in young (mean age 6.4 +/- 0.08 y) nonreading kindergarten children, as shown by concordant ERP and fMRI results. The occipito-temporal print sensitivity thus is established during the earliest phase of reading acquisition in childhood, suggesting that a crucial part of the later reading network first adopts a role in mapping print and sound.

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PMID:
20395549
PMCID:
PMC2867899
DOI:
10.1073/pnas.0904402107
[Indexed for MEDLINE]
Free PMC Article

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