Dysarthria is motor disturbance of speech individuals know what they want to say, but cannot get the words out correctly, because of weakness to the tongue or facial muscles. It can be complete, in which case it is difficult to distinguish from aphasia. However in dysarthria, comprehension, reading and writing should not be affected, in contrast to aphasia.


Testing for dysarthria video This shows a common way of testing for dysarthria. Do you think this patient has dysarthria?
facial nervepalsy video This patient has a facial nerve palsy which you can see from his smile. This makes his speech difficult to understand even though the content of his speech is normal.
Dysarthria and emotionalism video This is the same patient telling us about his experience of emotionalism which is not uncommon following a stroke. Emotionalism is where the patient cannot stop themselves from becoming emotional, usually crying at almost anything, even when they are happy. Note the prominent dysarthria in his speech due to his facial nerve palsy.