Dysarthria vs. Dysphasia — What's the Difference?

Difficulty in articulating words due to a disturbance in the form or function of the structures that modulate voice into speech; one of the first indicative symptoms of myasthenia gravis, brought about by an autoimmune response to acetylcholine receptors.

Impairment of speech and verbal comprehension, especially when associated with brain injury.

Dysarthria is a motor speech disorder resulting from neurological injury of the motor component of the motor–speech system and is characterized by poor articulation of phonemes. In other words, it is a condition in which problems effectively occur with the muscles that help produce speech, often making it very difficult to pronounce words.

(pathology) Loss of or deficiency in the power to use or understand language as a result of injury or disease of the brain.

Difficulty in articulating words, caused by impairment of the muscles used in speech.

Impaired articulatory ability resulting from defects in the peripheral motor nerves or in the speech musculature