Fragile X syndrome (FXS) is the most common cause of inherited intellectual disability and is
associated with a high rate of autism diagnosis. Language delays have been noted in the …

Abstract Background Fragile X syndrome (FXS) and Down syndrome (DS) are the two
leading genetic causes of intellectual disability, and FXS is the most common known genetic …

Many males with FXS meet criteria for ASD. This study was designed to (1) describe ASD
symptoms in adolescent and young adult males with FXS (n= 44) and (2) evaluate the …

ABSTRACT A small randomized group design (N= 20) was used to examine a parent-
implemented intervention designed to improve the spoken language skills of school-aged …

Purpose The current study compared the spontaneous expressive language of children with
autism spectrum disorder (ASD) across multiple language sampling contexts: the Autism …

Using a single case design, a parent-mediated spoken-language intervention was delivered
to three mothers and their school-aged sons with fragile X syndrome, the leading inherited …

Background It is well known that individuals with Down syndrome (DS) or fragile X syndrome
(FXS) demonstrate expressive language difficulties beginning early in childhood. It is less …

Despite the shared presence of an intellectual disability (ID), there is a growing literature
documenting important phenotypic differences between Down syndrome (DS) and fragile X …

Despite the similarities observed between the fragile X syndrome (FXS) and autism
spectrum disorder (ASD) phenotypes, few studies have compared their behavioral profiles …

Purpose This research explored syntactic growth in children with fragile X syndrome (FXS)
over a 5-year period, and variability in growth in relation to autism symptoms, nonverbal …