Motor Deficits Reported in Children with Autism Spectrum Disorder

964 Words2 Pages

Motor deficits are often reported in children with Autism Spectrum Disorder (ASD). Children with ASD frequently display clumsy gait, imbalance, and poor manual dexterity and coordination (Dowell, Mahone, & Mostofsky, 2009). Difficulty with skilled motor gestures, referred to as apraxia or dyspraxia, is also observed in and is actually one of the most consistently reported motor problems in children with ASD (Dziuk, Gidley Larson, Apostu, Mahone, Decnkla, & Mostofsky, 2007). Yet it is unclear whether children with ASD have a form of apraxia/dyspraxia, or whether their motor deficits can be explained by problems with basic motor skills. Several studies have compared children with ASD to typically developing children and have found that the children with ASD show poorer praxis control than their peers, even when accounting for variables such as basic motor skills, age, and IQ (Dowell et al., 2009; Dziuk et al., 2007; Ham, Bartolo, Corley, Rajendran, Szabo, & Swanson, 2010). Some may try to extend these finding of praxis impairments in general motor skills to account for the difficulty, and in some cases inability, of children with ASD to develop articulate speech, positing that these children have Childhood Apraxia of Speech (CAS). However, research has shown that speech is domain specific (Shriberg, Paul, Black, & van Santen, 2011), and thus we must treat motor apraxia separately from CAS. Overall, the literature reports that although children with ASD often have articulation disorders and unusual prosody, their speech and prosody impairments are not consistent with the motor speech impairments that define CAS (McCleery, Tully, Slevc, & Schreibman, 2006; Shriberg et al., 2011; Shriberg, Paul, McSweeny, Klin, Cohen, & Volkmar, 2001)...

... middle of paper ...

...it also suggests a strong correlation between praxis performance in children with ASD and the social, communicative, and behavioral impairments inherent in ASD. Dziuk et al. (2007) and Dowell et al. (2009) found that impairment in praxis performance, but not basic motor skill performance, correlated with scores on the Autism Diagnostic Observation Schedule-G (ADOS-G). Furthermore, Dziuk et al. (2007) reported that performance on the praxis examination significantly predicted the scores for each of the individual ADOS-G subsections – communication, social interactions, and stereotyped/repetitive behavior. These findings suggest that there may be a common neurological basis for both apraxia and the social interaction and communication impairments seen in ASD, and that apraxia may in fact be a marker of the underlying neurological deficits of ASD if not a core feature.

More about Motor Deficits Reported in Children with Autism Spectrum Disorder

Open Document