Analysis Of Broca 's Aphasia And Its Effects On The Production Of Speech

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Broca’s aphasia is a language disorder that affects the production of speech, best categorised as a non-fluent aphasia. It is also known as expressive aphasia, as someone who is affected by it understands what he or she wants to say, but are unable to express it. A sufferer would typically speak in single words, or a series of short utterances, with poor grammar. Their comprehension and perception of language used by others is not affected by this condition. Broca’s aphasia is named after the region of the brain in which the condition is believed to primarily occur, Broca’s area. The region of the brain was named after it’s discoverer, Paul Broca, after he first identified the area in 1861. He came about this discovery after conducting an autopsy on a former patient, where he found a lesion on the left inferior frontal lobe. Although Broca didn’t initially believe in functional specialisation, this evidence quickly changed his mind. He followed up this autopsy by examining the brains of a further 25 sufferers of expressive aphasia, and found that they all possessed abnormalities or lesions in the left inferior frontal lobe. This was not only some of the first evidence that suggested functional specialisation, or the ‘module’ theory of the brain, but also supported the theory of lateralisation of brain function. The cause of Broca’s aphasia is currently believed to be any type of damage to Broca’s area. The most common cause is a stroke, with 12% of victims suffering

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