A5055360302- Cognitive Abilities and Testing
- Child and Adolescent Psychosocial and Emotional Development
- Genetic Mapping and Diversity in Plants and Animals
- Early Childhood Education and Development
- Genetic Associations and Epidemiology
- Genetic and phenotypic traits in livestock
- Child Welfare and Adoption
- Child Development and Digital Technology
- Genetics and Plant Breeding
- Reading and Literacy Development
- Evolutionary Psychology and Human Behavior
- Birth, Development, and Health
- Central Venous Catheters and Hemodialysis
- Child and Animal Learning Development
- Cognitive and developmental aspects of mathematical skills
- Neuroendocrine regulation and behavior
- Assisted Reproductive Technology and Twin Pregnancy
- Genetics and Neurodevelopmental Disorders
- Glycosylation and Glycoproteins Research
- Language Development and Disorders
- Cultural Differences and Values
- Family Dynamics and Relationships
- Autism Spectrum Disorder Research
- Vascular Procedures and Complications
- Adipose Tissue and Metabolism
North Shore Hospital
2022
Stryker (United States)
2022
UNSW Sydney
2013-2021
University of Colorado Boulder
1990-1999
Institute for Behavioral Medicine
1990-1999
Psychiatry Research Trust
1984-1999
University of London
1977-1999
University of Colorado System
1988-1999
John Radcliffe Hospital
1995
University of Utah
1992-1993
Interval mapping of data from two independent samples sib pairs, at least one member whom was reading disabled, revealed evidence for a quantitative trait locus (QTL) on chromosome 6. Results obtained analyses performance 114 pairs genotyped DNA markers localized the QTL to 6p21.3. Analyses corresponding an sample 50 dizygotic twin provided linkage same region. In combination, replicate yielded chi 2 value 16.73 (P = 0.0002). Examination and kindred siblings with more extreme deficits in...
Phonological coding, measured by the oral reading of nonwords, and orthographic discrimination words from homophonic nonwords (e.g., rane, rain), were compared for pairs older children with disabilities (RD) younger nondisabled readers matched on word recognition. coding was substantially lower most RD, indicating a unique developmental deficit in phonological rather than an equal lag across all component skills. Data identical fraternal twins indicated that RD highly heritable accounted...
Psychological traits are commonly inferred from covariation in sets of behavioral measures that otherwise appear to have little common. Emotionality mice is such a trait, defined here by activity and defecation novel environment emergence into the open arms an elevated plus maze. Behavioral quantitative trait analyses were conducted on four obtained 879 F2 intercross. Three loci, murine chromosomes 1, 12, 15, mapped influence emotionality. This studies strain, sex, individual differences...
A key question for understanding the interplay between nature and nurture in development is direction of effects socialization. longitudinal adoption design provides a unique opportunity to investigate this issue terms genotype-environment correlations behavioral problems. As part Colorado Adoption Project, adopted children were classified as being at genetic risk (N = 38) or not 50) antisocial behavior based on their biological mothers' self-report history collected prior birth child. From...
The multiple regression analysis of twin data in which a cotwin's score is predicted from proband's and the coefficient relationship (the basic model) provides statistically powerful test genetic etiology. When an augmented model that also contains interaction term fitted to same set, direct estimates heritability (h2) proportion variance due shared environmental influences (c2) are obtained. A simple transformation selected prior facilitates h2g (an index extent difference between mean...
Children increasingly resemble their parents in cognitive abilities from infancy through adolescence Results obtained a 20-year longitudinal adoption study of 245 adopted children and biological adoptive parents, as well matched nonadoptive (control) offspring, show that this increasing resemblance is due to genetic factors Adopted slightly early childhood but not at all middle or In contrast, during adolescence, become more like the same degree control families Although these results were...
1. Nature and Nurture in Middle Childhood 2. The Colorado Adoption Project 3. Design Methodology Lon R. Cardon Stacey S. Cherny 4. General Cognitive Ability 5. Specific Abilities 6. Longitudinal Predictions of School-Age from Infant Novelty Preference Lee Anne Thompson Stephen A. Petrill 7. School Achievement Sally J. Wadsworth 8. Developmental Speech Language Disorders Susan Felsenfeld 9. Personality Temperament Stephanie Schmitz 10. Competence During Jenae M. Neiderhiser Shirley McGuire...
200 pairs of twins were assessed at 14 months age in the laboratory and home. Measures obtained temperament, emotion, cognition/language. Comparisons between identical fraternal twin correlations suggest that individual differences are due part to heritable influences. For genetic influence was significant for behavioral observations inhibition unfamiliar, tester ratings activity, parental temperament. found empathy negative emotion. The estimate heritability report expression emotions...
Genetic change as well continuity was investigated within the domains of temperament, emotion, and cognition/language for 200 pairs twins assessed at 14 20 months age in laboratory home. The second year life is marked by rather than continuity: correlations from to averaged about .30 observational measures temperament .40 language measures, .50 mental development. 2 types genetic were examined: changes magnitude influence (heritability) contributions months. In general, heritability...