Alexia

Inability to read

Alexia for numbers and digits is found in over 80% of individuals with left temporal-occipital lesions, and in less than 10% of those with right hemisphere lesions. As the name implies, the patient is unable to recognize numbers. Usually these individuals also suffer from generalized or literal alexia; i.e. an inability to recognize letters.
 * ALEXIA/AGNOSIA FOR NUMBERS**

In some cases acalculia may be associated with an alexia and/or an agraphia for numbers, as well as aphasic abnormalities (referred to as aphasic acalculia. Individuals with this disorder are unable to recognize or properly produce numbers in written form.
 * ALEXIA/AGRAPHIA FOR NUMBERS**

Ex: May be unable to write out or point to the number "4" vs the number "7" or the letter "B".

Lesion is usually in the **left inferior parietal lobule** and localized within the angular gyrus. Not all patients are aphasic however. See also Acalculia