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Pure alexia, also known as agnosic alexia or alexia without agraphia or pure word blindness, is one form of alexia which makes up "the peripheral dyslexia" group. [1] Individuals who have pure alexia have severe reading problems while other language-related skills such as naming, oral repetition, auditory comprehension or writing are typically ...
Dyslexia, previously known as word blindness, is a learning disability that affects either reading or writing. [ 1 ] [ 6 ] Different people are affected to different degrees. [ 3 ] Problems may include difficulties in spelling words, reading quickly, writing words , "sounding out" words in the head , pronouncing words when reading aloud and ...
Additionally, another British physician, CJ Thomas, provided a summary of congenital word blindness based on 100 cases at special schools in England. Thomas observed that word blindness was more prevalent than suspected. Furthermore, it appeared more than one member of the family was affected and three times more frequent in males than females.
Dyslexia is a common language-based learning disability. Dyslexia can affect reading fluency, decoding, reading comprehension, recall, writing, spelling, and sometimes speech and can exist along with other related disorders. [15] The greatest difficult those with the disorder have is with spoken and the written word.
In 1987, it was estimated that 598,000 people in the United States met the legal definition of blindness. [86] Of this number, 58% were over the age of 65. [86] In 1994–1995, 1.3 million Americans reported legal blindness. [87]
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Evidence for this hypothesis is based on research studies that have found that individuals with dyscalculia are proficient on tasks that measure knowledge of non-symbolic numerical magnitude (i.e., non-symbolic comparison tasks) but show an impaired ability to process symbolic representations of number (i.e., symbolic comparison tasks). [33]
The surgical treatments took place between 2007 and 2010, and quickly brought the relevant subject from total congenital blindness to fully seeing. A carefully designed test was submitted to each subject within the next 48 hours. Based on its result, the experimenters concluded that the answer to Molyneux's problem is, in short, "no".