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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]
Psychiatry, clinical psychology Pressure of speech (or pressured speech ) is a speech fast and frenetic (i.e., mainly without pauses), including some irregularities in loudness and rhythm or some degrees of circumstantiality ; it is hard to interpret and expresses a feeling/ affect of emergency.
Studies show there is a correlation between brain lesion and language, speech, and category-specific disorders. Wernicke's aphasia is associated with anomia, unknowingly making up words , and problems with comprehension. The symptoms of Wernicke's aphasia are caused by damage to the posterior section of the superior temporal gyrus. [6] [7]
Although disorders such as expressive aphasia, conduction aphasia, and dysarthria involve similar symptoms as apraxia of speech, the disorders must be distinguished in order to correctly treat the patients. [citation needed] While AOS involves the motor planning or processing stage of speech, aphasic disorders can involve other language processes.
It is unrelated to problems with understanding language (that is, dysphasia or aphasia), [3] although a person can have both. Any of the speech subsystems ( respiration , phonation , resonance , prosody , and articulation ) can be affected, leading to impairments in intelligibility, audibility, naturalness, and efficiency of vocal communication ...
This type of aphasia, which often involves impairments in speech output, can be contrasted with receptive aphasia, (also known as Wernicke's aphasia), named for Karl Wernicke, which is characterized by damage to more posterior regions of the left temporal lobe, and is often characterized by impairments in language comprehension.
An idiopathic disease is any disease with an unknown cause or mechanism of apparent spontaneous origin. [ 1 ] For some medical conditions, one or more causes are somewhat understood, but in a certain percentage of people with the condition, the cause may not be readily apparent or characterized.
This is a shortened version of the fifth chapter of the ICD-9: Mental Disorders.It covers ICD codes 290 to 319.The full chapter can be found on pages 177 to 213 of Volume 1, which contains all (sub)categories of the ICD-9.