Broca's aphasia is a language disorder, also called expressive aphasia, that results from damage to the brain's Broca's area, located in the left frontal lobe. It's characterized by nonfluent, telegraphic speech, where individuals have difficulty forming sentences, leaving out smaller words, and producing speech with great effort. Individuals with Broca's aphasia can still have inner speech, though it may be significantly altered or fragmented. Wernicke's aphasia is a condition where a person has difficulty understanding spoken and written language while still being able to speak fluently, though their speech may be nonsensical and contain made-up words. Conduction aphasia is a language disorder characterized by fluent speech and good comprehension but a significant difficulty in repeating words and sentences.
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