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Substantial gains in word learning ability between 20 and 24 months: A longitudinal ERP study

Borgström, Kristina LU ; Torkildsen, Janne von Koss and Lindgren, Magnus LU (2015) In Brain and Language 149. p.33-45
Abstract
This longitudinal ERP study investigated changes in children’s ability to map novel words to novel objects during the dynamic period of vocabulary growth between 20 and 24 months. During this four-month period the children on average tripled their productive vocabulary, an increase which was coupled with changes in the N400 effect to pseudoword-referent associations. Moreover, productive vocabulary size was related to the dynamics of semantic processing during novel word learning. In children with large productive vocabularies, the N400 amplitude was linearly reduced during the five experimental learning trials, consistent with the repetition effect typically seen in adults, while in children with smaller vocabularies the N400 attenuation... (More)
This longitudinal ERP study investigated changes in children’s ability to map novel words to novel objects during the dynamic period of vocabulary growth between 20 and 24 months. During this four-month period the children on average tripled their productive vocabulary, an increase which was coupled with changes in the N400 effect to pseudoword-referent associations. Moreover, productive vocabulary size was related to the dynamics of semantic processing during novel word learning. In children with large productive vocabularies, the N400 amplitude was linearly reduced during the five experimental learning trials, consistent with the repetition effect typically seen in adults, while in children with smaller vocabularies the N400 attenuation did not appear until the end of the learning phase. Vocabulary size was related only to modulation of the N400 to pseudowords, not to real words. These findings demonstrate a remarkable development of fast mapping ability between 20 and 24 months. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Children, N400, Vocabulary development, Infant, ERP, Fast mapping, Word learning
in
Brain and Language
volume
149
pages
33 - 45
publisher
Academic Press
external identifiers
  • pmid:26185047
  • wos:000362932300004
  • scopus:84937000872
ISSN
1090-2155
DOI
10.1016/j.bandl.2015.07.002
project
Cognition, Communication and Learning
language
English
LU publication?
yes
id
2aa3045d-0e4c-4792-8ad8-1928d9688f59 (old id 7615400)
date added to LUP
2015-08-12 11:44:29
date last changed
2017-03-19 03:12:15
@article{2aa3045d-0e4c-4792-8ad8-1928d9688f59,
  abstract     = {This longitudinal ERP study investigated changes in children’s ability to map novel words to novel objects during the dynamic period of vocabulary growth between 20 and 24 months. During this four-month period the children on average tripled their productive vocabulary, an increase which was coupled with changes in the N400 effect to pseudoword-referent associations. Moreover, productive vocabulary size was related to the dynamics of semantic processing during novel word learning. In children with large productive vocabularies, the N400 amplitude was linearly reduced during the five experimental learning trials, consistent with the repetition effect typically seen in adults, while in children with smaller vocabularies the N400 attenuation did not appear until the end of the learning phase. Vocabulary size was related only to modulation of the N400 to pseudowords, not to real words. These findings demonstrate a remarkable development of fast mapping ability between 20 and 24 months.},
  author       = {Borgström, Kristina and Torkildsen, Janne von Koss and Lindgren, Magnus},
  issn         = {1090-2155},
  keyword      = {Children,N400,Vocabulary development,Infant,ERP,Fast mapping,Word learning},
  language     = {eng},
  pages        = {33--45},
  publisher    = {Academic Press},
  series       = {Brain and Language},
  title        = {Substantial gains in word learning ability between 20 and 24 months: A longitudinal ERP study},
  url          = {http://dx.doi.org/10.1016/j.bandl.2015.07.002},
  volume       = {149},
  year         = {2015},
}