NotesFAQContact Us
Collection
Advanced
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ911114
Record Type: Journal
Publication Date: 2010-Aug
Pages: 11
Abstractor: As Provided
Reference Count: 53
ISBN: N/A
ISSN: ISSN-0006-8950
Early and Late Talkers: School-Age Language, Literacy and Neurolinguistic Differences
Preston, Jonathan L.; Frost, Stephen J.; Mencl, William Einar; Fulbright, Robert K.; Landi, Nicole; Grigorenko, Elena; Jacobsen, Leslie; Pugh, Kenneth R.
Brain, v133 n8 p2185-2195 Aug 2010
Early language development sets the stage for a lifetime of competence in language and literacy. However, the neural mechanisms associated with the relative advantages of early communication success, or the disadvantages of having delayed language development, are not well explored. In this study, 174 elementary school-age children whose parents reported that they started forming sentences "early", "on-time" or "late" were evaluated with standardized measures of language, reading and spelling. All oral and written language measures revealed consistent patterns for "early" talkers to have the highest level of performance and "late" talkers to have the lowest level of performance. We report functional magnetic resonance imaging data from a subset of early, on-time and late talkers matched for age, gender and performance intelligence quotient that allows evaluation of neural activation patterns produced while listening to and reading real words and pronounceable non-words. Activation in bilateral thalamus and putamen, and left insula and superior temporal gyrus during these tasks was significantly lower in late talkers, demonstrating that residual effects of being a late talker are found not only in behavioural tests of oral and written language, but also in distributed cortical-subcortical neural circuits underlying speech and print processing. Moreover, these findings suggest that the age of functional language acquisition can have long-reaching effects on reading and language behaviour, and on the corresponding neurocircuitry that supports linguistic function into the school-age years. (Contains 4 tables and 3 figures.)
Oxford University Press. Great Clarendon Street, Oxford, OX2 6DP, UK. Tel: +44-1865-353907; Fax: +44-1865-353485; e-mail: jnls.cust.serv@oxfordjournals.org; Web site: http://brain.oxfordjournals.org/
Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A