Search results
Results From The WOW.Com Content Network
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.
In neurology, semantic dementia (SD), also known as semantic variant primary progressive aphasia (svPPA), is a progressive neurodegenerative disorder characterized by loss of semantic memory in both the verbal and non-verbal domains. However, the most common presenting symptoms are in the verbal domain (with loss of word meaning).
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]
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 ]
Anomic aphasia (word retrieval failures) Phonemic paraphasia (sound errors in speech e.g. 'gat' for 'cat') Agrammatism (using the wrong tense or word order) As the disease develops, speech quantity decreases and many patients become mute. Cognitive domains other than language are rarely affected early on.
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 ...
Expressive aphasia contrasts with receptive aphasia, in which patients are able to speak in grammatical sentences that lack semantic significance and generally also have trouble with comprehension. [ 3 ] [ 7 ] Expressive aphasia differs from dysarthria , which is typified by a patient's inability to properly move the muscles of the tongue and ...
It is characteristic of fluent aphasia, most commonly receptive aphasia. Paragrammatism is sometimes called "extended paraphasia," although it is different from paraphasia. Paragrammatism is roughly synonymous with "word salad," which concerns the semantic coherence of speech rather than its production.