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Restricted and Repetitive Behaviors in Males and Females with Fragile X Syndrome: Developmental Trajectories in Toddlers through Young Adults
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Moskowitz, Lauren J.; Will, Elizabeth A.; Black, Conner J.; Roberts, Jane E. – Journal of Autism and Developmental Disorders, 2020
There is limited research on the trajectory of restricted and repetitive behaviors (RRBs) in fragile X syndrome (FXS), with previous studies only examining males and/or examining RRBs as a unitary construct rather than delineating subtypes of RRBs. Thus, we described the trajectory of five subtypes of RRBs in 153 males and females with FXS (aged…
Descriptors: Behavior Problems, Genetic Disorders, Intellectual Disability, Congenital Impairments
The Emergence of Effortful Control in Young Boys with Fragile X Syndrome
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Robinson, Marissa; Klusek, Jessica; Poe, Michele D.; Hatton, Deborah D.; Roberts, Jane E. – American Journal on Intellectual and Developmental Disabilities, 2018
Effortful control, or the ability to suppress a dominant response to perform a subdominant response, is an early-emerging temperament trait that is linked with positive social-emotional development. Fragile X syndrome (FXS) is a single-gene disorder characterized by hallmark regulatory impairments, suggesting diminished effortful control. This…
Descriptors: Genetic Disorders, Congenital Impairments, Intellectual Disability, Males
Brief Report: Autism Symptoms in Infants with Fragile X Syndrome
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Roberts, Jane E.; Tonnsen, Bridgette L.; McCary, Lindsay M.; Caravella, Kelly E.; Shinkareva, Svetlana V. – Journal of Autism and Developmental Disorders, 2016
Fragile X syndrome (FXS) is the most common known genetic cause of autism spectrum disorder (ASD). Although 50-75% of children with FXS meet ASD criteria, no studies have compared ASD symptoms in infants with FXS versus other high risk groups, such as siblings of children with ASD (ASIBs). Using the Autism Observation Scale for Infants, our…
Descriptors: Genetic Disorders, Intellectual Disability, Congenital Impairments, Infants
Pragmatic Language Features of Mothers with the "FMR1" Premutation Are Associated with the Language Outcomes of Adolescents and Young Adults with Fragile X Syndrome
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Klusek, Jessica; McGrath, Sara E.; Abbeduto, Leonard; Roberts, Jane E. – Journal of Speech, Language, and Hearing Research, 2016
Purpose: Pragmatic language difficulties have been documented as part of the FMR1 premutation phenotype, yet the interplay between these features in mothers and the language outcomes of their children with fragile X syndrome is unknown. This study aimed to determine whether pragmatic language difficulties in mothers with the "FMR1"…
Descriptors: Mothers, Mental Disorders, Congenital Impairments, Language Impairments
Autistic Behavior in Young Boys with Fragile X Syndrome.
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Bailey, Donald B., Jr.; Mesibov, Gary B.; Hatton, Deborah D.; Clark, Renee D.; Roberts, Jane E.; Mayhew, Lisa – Journal of Autism and Developmental Disorders, 1998
A study of 57 boys with fragile X syndrome (ages 24-133 months) assessed the extent to which autism and autistic features were evident using the Childhood Autism Rating Scale (CARS). Fourteen subjects scored above the cut-off for autism, with 12 of the 14 in the mildly or moderately autistic range. (Author/CR)
Descriptors: Autism, Children, Clinical Diagnosis, Congenital Impairments
Adaptive Behavior in Children with Fragile X Syndrome.
Hatton, Deborah D.; Wheeler, Anne C.; Skinner, Martie L.; Bailey, Donald B.; Sullivan, Kelly M.; Roberts, Jane E.; Mirrett, Penny; Clark, Renee D. – American Journal on Mental Retardation, 2003
Adaptive behavior was measured over time in 70 children, ages 1 to 12 years, with fragile X syndrome. With a mean of 4.4 assessments per child, adaptive behavior skills increased steadily and gradually over time. Children with less autistic behavior and higher percentages of the fragile X mental retardation gene protein showed better performance…
Descriptors: Adaptive Behavior (of Disabled), Age Differences, Autism, Children