COVID-19 UPDATES: Find news and resources for audiologists, speech-language pathologists, and the public. 
Latest Updates | Telepractice Resources | Email Us 

Acquired Apraxia of Speech

Acquired AOS is caused by any process or condition that compromises the structures and pathways of the brain responsible for planning and programming motor movements for speech. Causes most often include

  • stroke;
  • traumatic brain injury (TBI);
  • tumor;
  • surgical trauma (e.g., tumor resection); or
  • neurodegenerative diseases (e.g., corticobasal degeneration, progressive supranuclear palsy)

Occasionally, AOS is the first, only, or most prominent symptom in degenerative conditions. The term primary progressive AOS (PPAOS) is used in such cases (Duffy, 2006; Duffy & McNeil, 2008; Duffy, Peach, & Strand, 2007). Premotor and supplementary motor areas are implicated in progressive forms of AOS (e.g., Josephs et al., 2012).

Content Disclaimer: The Practice Portal, ASHA policy documents, and guidelines contain information for use in all settings; however, members must consider all applicable local, state and federal requirements when applying the information in their specific work setting.