Differences at 17 months: productive language patterns in infants at familial risk for dyslexia and typically developing infants.
Productive vocabulary composition is investigated in 17-month-old children who are participating in an ongoing longitudinal dyslexia research project in the Netherlands. The project is searching for early precursors for dyslexia and follows a group of children who are genetically at risk for dyslexia and a control group during the first 10 years of their lives. Among other measures, the Dutch version of the MacArthur Communicative Development Inventory: Words and Sentences (N-CDI) is used to investigate early vocabulary development. In this article, the first N-CDI results from the 2 groups of 17-month-old children are compared with each other, with other cross-sectional, cross-linguistic studies, and with a similar Finnish longitudinal dyslexia project. The Dutch children show the same general acquisition pattern as documented for other languages, but there are significant differences between the two groups of 17-month-old children in total number of words produced and in the linguistic composition of their productive vocabulary.
Neuroimaging Center, Department of School of Behavioral and Cognitive Neurosciences, University of Groningen, Groningen, The Netherlands. ckoster-kromhout@rug.nl
Charlotte
C
Koster
Pieter H
PH
Been
Evelien M
EM
Krikhaar
Frans
F
Zwarts
Heidi D
HD
Diepstra
Theo H
TH
Van Leeuwen
D016022:Case-Control Studies; D016009:Chi-Square Distribution; D004410:Dyslexia / Q000150:complications / Q000235:genetics* / Q000503:physiopathology*; D004522:Educational Status; D005260:Female; D020022:Genetic Predisposition to Disease / Q000235:genetics*; D006801:Humans; D007223:Infant; D007805:Language Development Disorders / Q000209:etiology / Q000235:genetics* / Q000503:physiopathology*; D007807:Language Tests; D008037:Linguistics; D008297:Male; D009460:Neurologic Examination; D010290:Parents / Q000193:education; D012307:Risk Factors; D012660:Semantics; D014825:Vocabulary