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Theses and Dissertations

Theses/Dissertations

FXS

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Full-Text Articles in School Psychology

Adhd Symptoms, Social Problems, And Independence In Adolescent And Young Adult Males With Fxs, Marjorie Lee Grefer Jan 2016

Adhd Symptoms, Social Problems, And Independence In Adolescent And Young Adult Males With Fxs, Marjorie Lee Grefer

Theses and Dissertations

Adolescents and young adults with fragile X syndrome (FXS) typically report a range of comorbid, impairing conditions including cognitive deficits, autism, and attention deficit/hyperactivity disorder (ADHD). Similarly these individuals experience social problems and very low levels of proficiency in independent living, which makes it extremely important to better understand what contributes to these deficits and how to potentially intervene and improve outcomes. Despite this importance, very little attention has been paid to the developmental period of adolescence in the FXS population. In addition, no previous work has utilized specific narrow band measures to probe for ADHD symptoms and instead has …


Behavioral And Heart-Defined Attention In Infants At High Genetic Risk For Autism, Bridgette L. Tonnsen Jan 2015

Behavioral And Heart-Defined Attention In Infants At High Genetic Risk For Autism, Bridgette L. Tonnsen

Theses and Dissertations

Characterizing early predictors of autism facilitates earlier identification, diagnosis and treatment. Although aberrant visual attention is one of the earliest identified predictors of autism and may play an integral role in developmental cascades that contribute to associated impairments, the emergence of atypical attention in infancy is poorly understood. The present dissertation includes three related manuscripts examining early patterns of visual attention in two infant samples at elevated risk for autism: infant siblings of children with autism (ASIBs) and infants with fragile X syndrome (FXS). Together, these manuscripts identify patterns of abnormal heart defined attention among ASIBs (Study 1), investigate the …


The Role Of Effortful Control And Cortisol In The Emergence Of Adhd, Asd, And Anxiety In Boys With Fxs, Marissa L. Robinson Jan 2015

The Role Of Effortful Control And Cortisol In The Emergence Of Adhd, Asd, And Anxiety In Boys With Fxs, Marissa L. Robinson

Theses and Dissertations

ADHD, ASD, and anxiety are three of the most common co-occurring disorders in children with FXS leading to increased social, academic, and behavioral difficulties (Bailey, Raspa, Olmsted, & Holiday, 2008). Early identification and treatment of these co-occurring mental health disorders is essential to promote optimal outcomes; therefore, the study of early precursors and underlying mechanisms of these disorders within a developmental framework is warranted. The current dissertation includes two sequential and related studies investigating impaired effortful control as a precursor and HPA axis dysfunction (measured through salivary cortisol) as an underlying mechanism to the emergence of ADHD, ASD, and anxiety …