AOS
Also written as: AOS — Apraxia of Speech
Abbreviation for Apraxia of Speech, a motor speech disorder caused by impaired planning and programming of the movements needed for speech.
Full Definition
AOS is a neurogenic motor speech disorder distinct from dysarthria and aphasia, though all three may co-occur following a stroke or brain injury. In AOS, the individual knows what they wish to say and has adequate muscle tone, but cannot consistently sequence the oral movements required for speech production. The abbreviation AOS is standard in speech-language pathology and rehabilitation medicine documentation. Editors must ensure AOS is expanded on first use in documents intended for a general or mixed professional audience, and must not substitute it for 'aphasia' or 'dysarthria'.
Usage
Usage note: Expand to 'apraxia of speech (AOS)' on first use. Do not use as a synonym for aphasia.
In Context
- "The patient presented with moderate AOS characterised by sound substitutions and effortful, groping articulatory movements." — Speech-language pathology intake report
- "Treatment for AOS was prioritised over language therapy given the patient's relatively preserved comprehension." — Rehabilitation team meeting minutes