Acquired motor speech disorders: overview
Acquired motor speech disorders are changes to voice and speech associated with damage to the central and peripheral nervous systems. This includes disorders associated with the nerve-muscle junction, e.g. myasthenia gravis and with muscle function, e.g. muscular dystrophies.
- Disorders covers apraxia of speech, dysarthria and dysprosody.
- Severity may range from changes imperceptible to listeners but felt by speakers through to absence of any speech or voice.
- Lesions bringing about motor speech disorders may involve:
- cerebral cortex
- and/or subcortical structures and pathways
- and/or peripheral nerves.
- Lesions may be localised, e.g. stroke or systemic, e.g. motor neurone disease, sudden onset or slowly or rapidly progressive, all with implications for management.
- Prognosis of the underlying neurological disorder may be towards improvement/plateau or inevitably deteriorating, but in all cases speech and language therapy (SLT) has a role to play.
View acquired motor speech disorders sections:
- Introduction: characteristics, aetiology, vulnerability and risk issues.
- Role of speech and language therapy: assessment, diagnosis and management.
- Prevalence and incidence statistics
- Evidence and research: evidence syntheses, reviews and sources, research case studies and priorities.
- Guidelines and supporting resources
- RCSLT Bulletin features
- Useful contacts: RCSLT advisers, RCSLT clinical excellence networks, key organisations.
- Reference list
- Website contributors and date of last review
Cross-reference with other topic areas:
- Brain injury
- Cleft lip and palate
- Head and neck cancer
- Motor disorders
- Progressive neurological disorders