Source:http://linkedlifedata.com/resource/pubmed/id/14651451
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2003-12-3
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pubmed:abstractText |
We report the first major genetic study of mild mental impairment. From a representative sample of 3886 twins (1314 monozygotic, 1296 dizygotic same-sex, and 1276 dizygotic opposite-sex), the lowest 5% were selected on a composite measure of verbal and nonverbal abilities assessed by parents when the twins were 2, 3, and 4 years of age. Twin concordances for mild mental impairment were 74% for monozygotic twins, 45% for same-sex, and 36% for opposite-sex dizygotic twins, indicating substantial genetic influence. Model-fitting analyses estimated group heritability as.49, which is significantly greater than heritability for the rest of the population in early childhood. These results suggest that mild mental impairment is a good target for neuroscience research on global brain function and dysfunction.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0895-8017
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
109
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
34-43
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:14651451-Child, Preschool,
pubmed-meshheading:14651451-Diseases in Twins,
pubmed-meshheading:14651451-Female,
pubmed-meshheading:14651451-Humans,
pubmed-meshheading:14651451-Individuality,
pubmed-meshheading:14651451-Intelligence,
pubmed-meshheading:14651451-Language Development Disorders,
pubmed-meshheading:14651451-Learning Disorders,
pubmed-meshheading:14651451-Male,
pubmed-meshheading:14651451-Mental Disorders,
pubmed-meshheading:14651451-Neurologic Examination,
pubmed-meshheading:14651451-Neuropsychological Tests,
pubmed-meshheading:14651451-Psychometrics,
pubmed-meshheading:14651451-Psychomotor Disorders,
pubmed-meshheading:14651451-Reproducibility of Results,
pubmed-meshheading:14651451-Twins, Dizygotic,
pubmed-meshheading:14651451-Twins, Monozygotic
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pubmed:year |
2004
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pubmed:articleTitle |
Substantial genetic influence on mild mental impairment in early childhood.
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pubmed:affiliation |
Department of Psychology, University of Bielefeld, Bielefeld, Germany. fspin@uni-bielefeld.de
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Twin Study
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