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Specialty. Neurology. Disorder of written expression is a type of learning disability in which a person's writing ability falls substantially below normally expected range based on the individual's age, educational background, and measured intelligence. Poor writing skills must interfere significantly with academic progress or daily activities ...
Semantic dementia. 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 ...
294.1x Dementia due to head trauma (coded 294.1 in the DSM-IV) 294.1x Dementia due to Parkinson's disease (coded 294.9 in the DSM-IV) 294.1x Dementia due to Huntington's disease (coded 294.1 in the DSM-IV) 294.1x Dementia due to Pick's disease (coded 290.10 in the DSM-IV) 294.1x Dementia due to Creutzfeldt–Jakob disease (coded 290.10 in the ...
Pre-1900. Adolph Kussmaul. The concept of "word-blindness" ( German: "wortblindheit"), as an isolated condition, was first developed by the German physician Adolph Kussmaul in 1877. [ 1][ 2] Identified by Oswald Berkhan in 1881, [ 3] the term 'dyslexia' was later coined in 1887 by Rudolf Berlin, [ 4] an ophthalmologist practicing in Stuttgart ...
3–7% [ 2][ 5] Dyslexia, previously known as word blindness, is a learning disability ('learning difficulty' in the UK [ 6]) that affects either reading or writing. [ 1][ 7] Different people are affected to different degrees. [ 3] Problems may include difficulties in spelling words, reading quickly, writing words, "sounding out" words in the ...
Definition. The National Institute of Neurological Disorders and Stroke defines reading disability or dyslexia as follows: "Dyslexia is a brain-based type of learning disability that specifically impairs a person's ability to read. These individuals typically read at levels significantly lower than expected despite having normal intelligence.
Orthographic Dyslexia. Orthographic dyslexia, a subtype of dyslexia, results in difficulty decoding and encoding skills due to slow and inaccurate rates of storing word and letter formations into memory. Orthographic dyslexics have difficulty in storing mental representation of words, especially phonetically irregular words such as word ...
Semantic dyslexia is, as the name suggests, a subtype of the group of known as alexia (acquired dyslexia). Those who have semantic dyslexia are unable to properly attach words to their meanings in reading or speech. When confronted with the word " ", they may understand it as " ", "shiny" or "diamonds"; when asking for a , they may ask for some ...