Research Topics
| Rosa A HoekstraSummaryAffiliation: University of Cambridge Country: UK Publications
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Detail Information
Publications
Factor structure, reliability and criterion validity of the Autism-Spectrum Quotient (AQ): a study in Dutch population and patient groupsRosa A Hoekstra
Department of Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
J Autism Dev Disord 38:1555-66. 2008..Men scored higher than women and science students higher than non-science students. The Dutch translation of the AQ is a reliable instrument to assess autism spectrum conditions...
Genetic and environmental influences on the stability of withdrawn behavior in children: a longitudinal, multi-informant twin studyRosa A Hoekstra
Department of Biological Psychology, VU University, Amsterdam, The Netherlands
Behav Genet 38:447-61. 2008..Non-shared environmental effects accounted for the remaining covariance over time...
Genetic and environmental covariation between autistic traits and behavioral problemsRosa A Hoekstra
Department of Biological Psychology, VU University, Amsterdam, The Netherlands
Twin Res Hum Genet 10:853-60. 2007..These results indicate that autistic traits have specific characteristics that are substantially genetically independent from other common but related behavioral domains such as social problems and withdrawn behavior...
Genetic architecture of verbal abilities in children and adolescentsRosa A Hoekstra
Department of Biological Psychology, VU University Amsterdam, The Netherlands
Dev Sci 12:1041-53. 2009..In addition to a shared set of genes that influenced all phenotypes, there were also genetic influences specific to the different verbal phenotypes...
A twin study of cognitive costs of low birth weight and catch-up growthG Frederiek Estourgie-van Burk
Department of Pediatric Endocrinology, VU University Medical Center, Amsterdam, The Netherlands
J Pediatr 154:29-32. 2009..To investigate whether there is an association between catch-up growth and cognitive performance in humans...
The genetic and environmental structure of verbal and visuospatial memory in young adults and childrenMarieke van Leeuwen
Department of Biological Psychology, VU University Amsterdam, and Division of Psychosocial Research and Epidemiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
Neuropsychology 23:792-802. 2009..At the environmental level, in both age cohorts, environmental factors create differences between these domains...
Attention problems, inhibitory control, and intelligence index overlapping genetic factors: a study in 9-, 12-, and 18-year-old twinsTinca J C Polderman
Department of Biological Psychology, VU University Amsterdam, Amsterdam, The Netherlands
Neuropsychology 23:381-91. 2009..Genetic factors that influenced IQ also influenced inhibitory control. We conclude that the association between AP and inhibitory control as reported in the literature may largely derive from genetic factors that are shared with IQ...
Heritability of autistic traits in the general populationRosa A Hoekstra
Department of Biological Psychology, VU University Amsterdam, Amsterdam, The Netherlands
Arch Pediatr Adolesc Med 161:372-7. 2007..To explore genetic and environmental influences on individual differences in autistic traits in early adulthood and to test if there is assortative mating (nonrandom partner choice) for autistic traits in the general population...
The Autism-Spectrum Quotient (AQ)--adolescent versionSimon Baron-Cohen
Department of Psychiatry, Autism Research Centre, University of Cambridge, CB2 2AH, Cambridge, UK
J Autism Dev Disord 36:343-50. 2006..none of the controls. Among the controls, boys scored higher than girls. The AQ can rapidly quantify where an adolescent is situated on the continuum from autism to normality...
Heritability of testosterone levels in 12-year-old twins and its relation to pubertal developmentRosa A Hoekstra
Department of Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
Twin Res Hum Genet 9:558-65. 2006..Testosterone levels correlated moderately (r = .31) with pubertal development; the covariance between testosterone levels and pubertal development was entirely accounted for by genetic influences...
Genetic contributions to subtypes of aggressionLannie Ligthart
Department of Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
Twin Res Hum Genet 8:483-91. 2005..54 for boys and .43 for girls). These findings may have implications for how aggressive behavior should be assessed in boys and girls...
