Global aphasia- the most severe form of aphasia in which the person can hardly understand spoken or written language and can't communicate well, read, or write.
Broca's aphasia- although the person can understand others and may be able to read, speech output is usually limited to four-word phrases. It's also called expressive or motor aphasia.
Mixed non-fluent aphasia- these patients also have great difficulty speaking like in Broca's aphasia, but their comprehension is limited to an elementary level.
Wernicke's aphasia- the ability to understand spoken words is greatly impaired. Fluent speech is possible, although it is often irregular.
Anomic aphasia- these patients can understand and read well, but they have difficulty finding the words to describe what they want to talk about and are generally vague
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