Speech Motor Control in Autistic Spectrum Disorders

A fundamental characteristic of autism spectrum disorders ASD is a neurophysiological sensory motor disorder that has a profound impact on the perception and production of spoken language. The sounds of speech are distinctly human and involve neurologically controlled, rapid, coordinated movements of the articulators, shaping of the oral cavity, and vibrations of the vocal folds.

A therapeutic method for developing the production and perception of spoken language in subjects aged 3-10 years was administered. Systematic and controlled auditory and visual stimuli were presented to incrementally increase the range and complexity of the utterances that the child is capable of producing and perceiving.
Case studies presented describe the effects of Speech Motor Training (SMT) and Expressive Language Training (ELT) on speech motor control and language development.