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Developmental verbal dyspraxia (DVD), also known as childhood apraxia of speech (CAS) and developmental apraxia of speech (DAS), [1] is a condition in which an individual has problems saying sounds, syllables and words. This is not because of muscle weakness or paralysis.
Apraxia occurring later in life, known as acquired apraxia, is typically caused by traumatic brain injury, stroke, dementia, Alzheimer's disease, brain tumor, or other neurodegenerative disorders. [3] The multiple types of apraxia are categorized by the specific ability and/or body part affected.
Developmental verbal dyspraxia (DVD), also known as childhood apraxia of speech (CAS) and developmental apraxia of speech (DAS), [3] [4] is an inability to utilize motor planning to perform movements necessary for speech during a child's language learning process. Although the causes differ between AOS and DVD, the main characteristics and ...
The following is a list of language disorders. A language disorder is a condition defined as a condition that limits or altogether stops natural speech . A language disorder may be neurological, physical, or psychological in origin.
Specific language impairment (SLI) (the term developmental language disorder is preferred by some) [1] is diagnosed when a child's language does not develop normally and the difficulties cannot be accounted for by generally slow development, physical abnormality of the speech apparatus, autism spectrum disorder, apraxia, acquired brain damage or hearing loss.
Ideomotor apraxia was classified as "ideo-kinetic apraxia" by Liepmann due to the apparent dissociation of the idea of the action with its execution. [1] The classifications of the various subtypes are not well defined at present, however, owing to issues of diagnosis and pathophysiology.
There were those who felt it was an executive processing order and those who felt it was a visuospatial disorder. Due to discrepancies in definitions, constructional apraxia became a blanket term to describe any kind of constructional impairment. Modern researchers question whether the term "apraxia" is appropriate to describe this condition. [4]
Ideational apraxia is a condition in which an individual is unable to plan movements related to interaction with objects, because they have lost the perception of the object's purpose. [2] Characteristics of this disorder include a disturbance in the concept of the sequential organization of voluntary actions.