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Global aphasia is a severe form of nonfluent aphasia, caused by damage to the left side of the brain, that affects [1] receptive and expressive language skills (needed for both written and oral language) as well as auditory and visual comprehension. [2]
Aphasia, also known as dysphasia, [a] is an impairment in a person’s ability to comprehend or formulate language because of damage to specific brain regions. [2] The major causes are stroke and head trauma; prevalence is hard to determine, but aphasia due to stroke is estimated to be 0.1–0.4% in developed countries. [3]
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In order to capitalize on neuroplasticity for treatment of all types of aphasia, timing, intensity, duration, and repetition of treatment should be taken into consideration. Research has found that aphasia treatment initiated during the earlier acute post-injury phase is more effective compared to treatment initiated in the chronic phase. [21]
In neuropathy, primary progressive aphasia (PPA) [1] is a type of neurological syndrome in which language capabilities slowly and progressively become impaired. As with other types of aphasia, the symptoms that accompany PPA depend on what parts of the brain's left hemisphere are significantly damaged. However, unlike most other aphasias, PPA ...
This is a mild form of aphasia as comprehension is not limited. Global aphasia [21] [22] is the most severe form of aphasia as there is difficulty with speech comprehension, as well as difficulty in responding in meaningful ways. This is caused by several brain injuries in more than one spot.
Survivors with global aphasia may have great difficulty understanding and forming words and sentences, and generally experience a great deal of difficulty when trying to communicate. [2] With considerable speech therapy rehabilitation, global aphasia may progress into expressive aphasia or receptive aphasia.
Mixed transcortical aphasia is characterized by severe speaking and comprehension impairment, but with preserved repetition. [6] People who suffer mixed transcortical aphasia struggle greatly to produce propositional language or to understand what is being said to them, yet they can repeat long, complex utterances or finish a song once they hear the first part.