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Reading in two writing systems: Accommodation and assimilation of the brain's reading network

Published online by Cambridge University Press:  04 July 2007

CHARLES A. PERFETTI
Affiliation:
University of Pittsburgh
YING LIU
Affiliation:
University of Pittsburgh
JULIE FIEZ
Affiliation:
University of Pittsburgh
JESSICA NELSON
Affiliation:
University of Pittsburgh
DONALD J. BOLGER
Affiliation:
University of Pittsburgh
LI-HAI TAN
Affiliation:
University of Hong Kong

Abstract

Bilingual reading can require more than knowing two languages. Learners must acquire also the writing conventions of their second language, which can differ in its deep mapping principles (writing system) and its visual configurations (script). We review ERP (event-related potential) and fMRI studies of both Chinese–English bilingualism and Chinese second language learning that bear on the system accommodation hypothesis: the neural networks acquired for one system must be modified to accommodate the demands of a new system. ERP bilingual studies demonstrate temporal indicators of the brain's experience with L1 and L2 and with the frequency of encounters of words in L2. ERP learning studies show that early visual processing differences between L1 and L2 diminish during a second term of study. fMRI studies of learning converge in finding that learners recruit bilateral occipital-temporal and also middle frontal areas when reading Chinese, similar to the pattern of native speakers and different from alphabetic reading. The evidence suggests an asymmetry: alphabetic readers have a neural network that accommodates the demands of Chinese by recruiting neural structures less needed for alphabetic reading. Chinese readers have a neural network that partly assimilates English into the Chinese system, especially in the visual stages of word identification.

Type
Research Article
Copyright
© Cambridge University Press 2007

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Footnotes

Some of the research reported in this article was supported by grants from the National Science Foundation (Perfetti), the James S. McDonnell Foundation (Fiez and Perfetti), and the Chinese Ministry of Science and Technology (Tan).