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Kan, Kees-Jan; Ploeger, Annemie; Raijmakers, Maartje E. J.; Dolan, Conor V.; van Der Maas, Han L. J. – Developmental Science, 2010
We present a review of empirical evidence that suggests that a substantial portion of phenotypic variance is due to nonlinear (epigenetic) processes during ontogenesis. The role of such processes as a source of phenotypic variance in human behaviour genetic studies is not fully appreciated. In addition to our review, we present simulation studies…
Descriptors: Twins, Simulation, Genetics, Models
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Arciuli, Joanne; Simpson, Ian C. – Developmental Science, 2011
It is possible that statistical learning (SL) plays a role in almost every mental activity. Indeed, research on SL has grown rapidly over recent decades in an effort to better understand perception and cognition. Yet, there remain gaps in our understanding of how SL operates, in particular with regard to its (im)mutability. Here, we investigated…
Descriptors: Stimuli, Multiple Regression Analysis, Language Processing, Children
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Alcock, Katherine J.; Krawczyk, Kirsty – Developmental Science, 2010
Language development has long been associated with motor development, particularly manual gesture. We examined a variety of motor abilities--manual gesture including symbolic, meaningless and sequential memory, oral motor control, gross and fine motor control--in 129 children aged 21 months. Language abilities were assessed and cognitive and…
Descriptors: Psychomotor Skills, Motor Development, Language Acquisition, Individual Differences
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Posner, Michael I.; Rothbart, Mary K.; Sheese, Brad E. – Developmental Science, 2007
A major problem for developmental science is understanding how the cognitive and emotional networks important in carrying out mental processes can be related to individual differences. The last five years have seen major advances in establishing links between alleles of specific genes and the neural networks underlying aspects of attention. These…
Descriptors: Individual Differences, Cognitive Development, Emotional Development, Cognitive Processes
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Marchman, Virginia A.; Martinez-Sussmann, Carmen; Dale, Philip S. – Developmental Science, 2004
The fact that early lexical and grammatical acquisition are strongly correlated has been cited as evidence against the view that the language faculty is composed of dissociable and autonomous modules (Bates & Goodman, 1997). However, previous studies have not yet eliminated the possibility that lexical-grammar associations may be attributable to…
Descriptors: Grammar, Language Skills, Bilingualism, Second Language Learning
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Ronald, Angelica; Happe, Francesca; Plomin, Robert – Developmental Science, 2005
Two types of behaviours shown in children--those reflecting social impairment and nonsocial obsessive repetitive behaviours--are central to defining and diagnosing autism spectrum disorders (ASDs). Parent and teacher data on social and nonsocial behaviours were obtained from a community sample of greater than 3000 7-year-old twin pairs. Social and…
Descriptors: Twins, Autism, Genetics, Individual Differences
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Noble, Kimberly G.; Norman, M. Frank; Farah, Martha J. – Developmental Science, 2005
Socioeconomic status (SES) is strongly associated with cognitive ability and achievement during childhood and beyond. Little is known about the developmental relationships between SES and specific brain systems or their associated cognitive functions. In this study we assessed neurocognitive functioning of kindergarteners from different…
Descriptors: Socioeconomic Status, Young Children, Kindergarten, Cognitive Processes