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.
Koster
Charlotte
C
Neuroimaging Center, Department of School of Behavioral and Cognitive Neurosciences, University of Groningen, Groningen, The Netherlands. ckoster-kromhout@rug.nl
Been
Pieter H
PH
Krikhaar
Evelien M
EM
Zwarts
Frans
F
Diepstra
Heidi D
HD
Van Leeuwen
Theo H
TH
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