Estimates of the prevalence of speech and motor speech disorders in persons with complex
neurodevelopmental disorders (CND) can inform research in the biobehavioural origins and …

The goal of this research was to obtain initial estimates of the prevalence of each of four
types of motor speech disorders in children with idiopathic Speech Delay (SD) and to use …

Purpose Speech sound disorders and velopharyngeal dysfunction are frequent features of
22q11. 2 deletion syndrome (22q). We report the first estimate of the prevalence of motor …

Although there is substantial rationale for a motor component in the speech of persons with
Down syndrome (DS), there presently are no published estimates of the prevalence of …

Background Speech is the most common modality through which language is
communicated, and delayed, disordered, or absent speech production is a hallmark of many …

Abstract Background/Purpose Differentiating the symptom complex due to phonological-
level disorders, speech delay and pediatric motor speech disorders is a controversial issue …

Microdeletions and microduplications encompassing a~ 593-kb region of 16p11. 2 have
been implicated as one of the most common genetic causes of susceptibility to …

Purpose: Motor speech characteristics of children with Down syndrome (DS) have
historically been viewed as either Childhood Dysarthria (CD) or, more infrequently, as …

The diagnostic criteria used to identify developmental apraxia of speech (DAS) have been at
the center of controversy for decades. Despite the difficulty in determining the characteristics …

Purpose The purpose of the study was to determine whether distinct subgroups of preschool
children with speech sound disorders (SSD) could be identified using a subgroup discovery …