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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]
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.
Transcortical sensory aphasia: individuals have impaired auditory comprehension with intact repetition and fluent speech. [16] Progressive confluent aphasia: A form of frontotemporal dementia characterized by motor speech impairment, agrammatism, laborious speech, and apraxia of speech. It is understood that comprehension of speech and semantic ...
Conduction aphasia is a mild language disability, and most people return to their normal lives. [10] [13] Broca's and Wernicke's aphasia are commonly caused by middle cerebral artery strokes. [14] Symptoms of conduction aphasia, as with other aphasias, can be transient, sometimes lasting only several hours or a few days.
TMoA, or any other type of aphasia, is identified and diagnosed through the screening and assessment process. Screening can be conducted by an SLP or other professional when there is a suspected aphasia. [8] The screening does not diagnose aphasia, rather it points to the need for a further comprehensive assessment.
A person with anomic aphasia have word-finding difficulties. Anomic aphasia, also known as anomia, is a non-fluent aphasia, which means the person speaks hesitantly because of a difficulty naming words or producing correct syntax. [medical citation needed] The person struggles to find the right words for speaking and writing. [4]
Transcortical sensory aphasia is characterized as a fluent aphasia. Fluency is determined by direct qualitative observation of the patient’s speech to determine the length of spoken phrases, and is usually characterized by a normal or rapid rate; normal phrase length, rhythm, melody, and articulatory agility; and normal or paragrammatic speech. [5]
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 .