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Full-Text Articles in Clinical Psychology
Molecular Genetic Basis Of Opposite Gene By Environment Interactions In Reading Disability And Attention Deficit/Hyperactivity Disorder, Jennifer Rosenberg
Molecular Genetic Basis Of Opposite Gene By Environment Interactions In Reading Disability And Attention Deficit/Hyperactivity Disorder, Jennifer Rosenberg
Electronic Theses and Dissertations
The goal of this study is to better understand the genetic basis of Reading Disability (RD) and Attention Deficit Hyperactivity Disorder (ADHD) by examining molecular G x E interactions with parental education for each disorder. Research indicates that despite sharing genetic risk factors, RD and ADHD are influenced by different types of G x E interactions with parental education - a diathesis stress interaction in the case of ADHD and a bioecological interaction in RD. In order to resolve this apparent paradox, we conducted a preliminary study using behavioral genetic methods to test for G x E interactions in RD …
Phonological Memory And Broader Language Development: Longitudinal And Etiologic Relations, Robin Leonhardt Peterson
Phonological Memory And Broader Language Development: Longitudinal And Etiologic Relations, Robin Leonhardt Peterson
Electronic Theses and Dissertations
The current research investigated the relationship of phonological memory (PM) to vocabulary and syntax learning in school-age children with and without language disorders. Previous research has established that PM and broad oral language skills covary, but disagreement remains about the reason for this association. Opposing theoretical viewpoints emphasize the importance of either bottom-up (PM influences vocabulary and syntax acquisition) or top-down (vocabulary growth influences PM skill) factors. In three longitudinal studies, we tested competing bottom-up and top-down explanations of the PM-broad language link. Study 1 utilized a structural equation modeling approach to understand PM and broad language relations from age …
Gene X Environment Interactions In Developmental Dyslexia, Lauren M. Mcgrath
Gene X Environment Interactions In Developmental Dyslexia, Lauren M. Mcgrath
Electronic Theses and Dissertations
The goal of this project was to advance understanding of the complex multifactorial etiology of developmental dyslexia, or reading disability (RD), by investigating gene x environment (G x E) interactions. This project tested for G x E interactions using molecular genetic methods and measures of psychosocial and bioenvironmental risk factors. There are two competing predictions that can be derived from existing G x E models about the expected direction of interactions in RD. There could be "diathesis-stress" interactions in which the effects of genotype are stronger in risk environments, or there could be "bioecological" interactions in which the effects of …