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Anomic aphasia, also known as dysnomia, nominal aphasia, and amnesic aphasia, is a mild, fluent type of aphasia where individuals have word retrieval failures and cannot express the words they want to say (particularly nouns and verbs). [1]
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]
One of the most important aspects of Paul Broca's discovery was the observation that the loss of proper speech in expressive aphasia is due to the brain's loss of ability to produce language, as opposed to the mouth's loss of ability to produce words.
Anomic aphasia: the biggest hallmark is one's poor word-finding abilities; one's speech is fluent and appropriate, but full of circumlocutions (evident in both writing and speech). Conduction aphasia: individuals can comprehend what is being said and are fluent in spontaneous speech, but they cannot repeat what is being said to them.
In an extreme example, one of his person could only produce a single syllable, "Tan". Meanwhile, Carl Wernicke described person with receptive aphasia, who had damage to the left posterior superior temporal lobe, which he named "the area of word images". These person could speak fluently, but their speech lacked meaning.
These errors can be semantic, in which the meaning of the word is related to that of the intended word (car for van, for example). [16] Semantic paraphasias can be further subdivided into six different types. [12] Coordinate semantic paraphasias replace the target word with one that is from the same category, such as tiger for lion.
Conduction aphasia [21] also known as association aphasia, is when there is a difficulty repeating words or phrases. Comprehension and spontaneous speech are usually not limited, just repetition. Anomic aphasia [21] is when one has difficulty retrieving words and may take long pauses when trying to recall certain verbs or nouns. This is a mild ...
For example, the sounds /k/ and /t/ may not be recognized as having different meanings, so "call" and "tall" might be treated as homophones, both being pronounced as "tall." This is called phoneme collapse, and in some cases many sounds may all be represented by one — e.g., /d/ might replace /t/, /k/, and /ɡ/. As a result, the number of ...
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