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PMID |
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TITLE |
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The nature and nurture of high IQ: an extended sensitive period for intellectual development. |
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ABSTRACT |
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IQ predicts many measures of life success, as well as trajectories of brain development. Prolonged cortical thickening observed in individuals with high IQ might reflect an extended period of synaptogenesis and high environmental sensitivity or plasticity. We tested this hypothesis by examining the timing of changes in the magnitude of genetic and environmental influences on IQ as a function of IQ score. We found that individuals with high IQ show high environmental influence on IQ into adolescence (resembling younger children), whereas individuals with low IQ show high heritability of IQ in adolescence (resembling adults), a pattern consistent with an extended sensitive period for intellectual development in more-intelligent individuals. The pattern held across a cross-sectional sample of almost 11,000 twin pairs and a longitudinal sample of twins, biological siblings, and adoptive siblings. |
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DATE PUBLISHED |
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HISTORY |
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PUBSTATUS |
PUBSTATUSDATE |
aheadofprint |
2013/07/01 |
entrez |
2013/07/03 06:00 |
pubmed |
2013/07/03 06:00 |
medline |
2014/05/03 06:00 |
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AUTHORS |
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NAME |
COLLECTIVENAME |
LASTNAME |
FORENAME |
INITIALS |
AFFILIATION |
AFFILIATIONINFO |
Brant AM |
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Brant |
Angela M |
AM |
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Department of Psychology, The Pennsylvania State University, PA 16802-3106, USA. amb76@psu.edu |
Munakata Y |
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Munakata |
Yuko |
Y |
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Boomsma DI |
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Boomsma |
Dorret I |
DI |
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Defries JC |
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Defries |
John C |
JC |
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Haworth CM |
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Haworth |
Claire M A |
CM |
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Keller MC |
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Keller |
Matthew C |
MC |
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Martin NG |
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Martin |
Nicholas G |
NG |
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McGue M |
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McGue |
Matthew |
M |
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Petrill SA |
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Petrill |
Stephen A |
SA |
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Plomin R |
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Plomin |
Robert |
R |
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Wadsworth SJ |
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Wadsworth |
Sally J |
SJ |
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Wright MJ |
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Wright |
Margaret J |
MJ |
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Hewitt JK |
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Hewitt |
John K |
JK |
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INVESTIGATORS |
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JOURNAL |
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VOLUME: 24 |
ISSUE: 8 |
TITLE: Psychological science |
ISOABBREVIATION: Psychol Sci |
YEAR: 2013 |
MONTH: Aug |
DAY: |
MEDLINEDATE: |
SEASON: |
CITEDMEDIUM: Internet |
ISSN: 1467-9280 |
ISSNTYPE: Electronic |
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MEDLINE JOURNAL |
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MEDLINETA: Psychol Sci |
COUNTRY: United States |
ISSNLINKING: 0956-7976 |
NLMUNIQUEID: 9007542 |
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PUBLICATION TYPE |
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PUBLICATIONTYPE TEXT |
Journal Article |
Research Support, N.I.H., Extramural |
Research Support, Non-U.S. Gov't |
Twin Study |
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COMMENTS AND CORRECTIONS |
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GRANTS |
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GRANTID |
AGENCY |
COUNTRY |
HD010333 |
NICHD NIH HHS |
United States |
MH079485 |
NIMH NIH HHS |
United States |
R01 HD010333 |
NICHD NIH HHS |
United States |
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GENERAL NOTE |
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KEYWORDS |
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KEYWORD |
behavior genetics |
cognitive ability |
cognitive development |
individual differences |
intelligence |
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MESH HEADINGS |
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DESCRIPTORNAME |
QUALIFIERNAME |
Adolescent |
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Adolescent Development |
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Adult |
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Aged |
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Child |
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Child Development |
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Child, Preschool |
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Critical Period (Psychology) |
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Environment |
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Female |
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Gene-Environment Interaction |
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Humans |
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Intelligence |
genetics |
Male |
genetics |
Middle Aged |
genetics |
Siblings |
genetics |
Social Environment |
genetics |
Twins |
genetics |
Twins, Dizygotic |
genetics |
Twins, Monozygotic |
genetics |
Young Adult |
genetics |
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SUPPLEMENTARY MESH |
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GENE SYMBOLS |
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CHEMICALS |
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OTHER ID's |
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