Aphasia is a group of conditions characterized by difficulty communicating using language. There are two main types: expressive or Broca's aphasia, and receptive aphasia. In the former, the person has difficulty producing language, often experiencing stilted speech, though the issue does not usually affect comprehension. The severity of the aphasia varies from person to person, ranging from mild issues to a complete inability to use language. About 170,000 cases of Broca's aphasia are diagnosed each year in the U.S.
Broca's aphasia is named after Pierre Paul Broca, the first person to suggest a relationship between the symptoms of broken speech and damage to specific parts of the brain. He noticed that people with trauma to a specific part of the frontal lobe had difficulty expressing language. This region is now called Broca's area.
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