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Aphasia - Definition


Aphasia is a language disorder. It is often due to a neurological problem in the areas of the brain responsible for language. Two types of aphasia can be distinguished: Motor aphasia, also called Broca's aphasia, mainly affects speech with symptoms ranging from the inability to find the appropriate words to the total incapacity to speak. Sensory aphasia, also called Wernicke's aphasia, affects the comprehension of the written or spoken language. These two types of aphasia affect people who have successfully learned the language. Aphasia can be caused by a stroke, cranial trauma, tumor, infection, or a neuro-degenerative illness like Alzheimer's.