Dysphasia is an acquired deficit in the comprehension or production of language whether spoken or written.
Aphasia is a complete loss of language comprehension or production.
The main types of dysphasia are:
Mutism is a global loss of language and is not a good localising sign.
Transcortical dysphasias are due to interuption of the connections between association cortices and the motor or sensory speech areas.
Last reviewed 01/2018