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The alternative meaning of alogia is inability to speak because of dysfunction in the central nervous system, [10] [3] found in mental deficiency and dementia. [11] [3] In this sense, the word is synonymous with aphasia, [3] and in less severe form, it is sometimes called dyslogia. [10]
In aphasia (sometimes called dysphasia), [a] a person may be unable to comprehend or unable to 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 the Global North. [3]
For example, the definitions offered by the American Speech–Language–Hearing Association differ from those of the Diagnostic Statistical Manual 4th edition (DSM-IV). [ 4 ] Gleason (2001) defines a communication disorder as a speech and language disorder which refers to problems in communication and in related areas such as oral motor function.
Inability to differentiate, recognize, or understand sounds; hearing and intelligence are normal. Chemosensory disorders Diseases or problems associated with the sense of smell or the sense of taste. Cholesteatoma Accumulation of dead cells in the middle ear, caused by repeated middle ear infections. Cochlea
Muteness is the complete inability to speak. Speech sound disorders involve difficulty in producing specific speech sounds (most often certain consonants, such as /s/ or /r/), and are subdivided into articulation disorders (also called phonetic disorders) and phonemic disorders. Articulation disorders are characterized by difficulty learning to ...
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[3] [7] Expressive aphasia differs from dysarthria, which is typified by a patient's inability to properly move the muscles of the tongue and mouth to produce speech. Expressive aphasia also differs from apraxia of speech , which is a motor disorder characterized by an inability to create and sequence motor plans for conscious speech.
The following are common symptoms seen in patients with Wernicke's aphasia: Impaired comprehension : deficits in understanding (receptive) written and spoken language. [ 2 ] This is because Wernicke's area is responsible for assigning meaning to the language that is heard, so if it is damaged, the brain cannot comprehend the information that is ...