What is the definition of agraphia?
Agraphia may be defined as a loss or impairment of the ability to produce written language, caused by brain dysfunction.
What is difference between dyslexia and alexia?
Those who suffer from “alexia” and “dyslexia” can have similar difficulties, however, “alexia” refers to an acquired reading disability, where reading ability had previously been developed, usually occurring in adulthood conditions, while “dyslexia” refers to developmental reading disability.
What is alexia also known as?
Pure alexia is also known as: “alexia without agraphia”, “letter-by-letter dyslexia”, “spelling dyslexia”, or “word-form dyslexia”.
What is aphasia with agraphia?
Agraphia, with nonfluent aphasia, typically reflects features of Broca’s aphasia, also referred to as nonfluent or motor aphasia. Letter and word output are lower than expected, with spelling errors due to letter omission.
How is Alexia diagnosed?
Diagnosis is based on the symptom of not being able to read, but the patient still maintains visual acuity and the ability to write. Patients often have right homonymous hemianopia due to left occipital lobe involvement. Neuropsychometric testing may also be used to diagnose alexia without agraphia.
Which part is damaged in Alexia without agraphia?
Alexia without agraphia is a disconnection syndrome that occurs when the splenium is also damaged with the occipital lobe on a dominant side.
What is Alexia sine agraphia?
Alexia without agraphia, also known as pure alexia, is a condition when a patient can not read what he/she writes due to a lesion in the visual word form area. This condition is important as a patient might perceive it as a problem in vision and might consult an ophthalmologist.
What causes Alexia without agraphia?
Most cases of alexia without agraphia are due to cerebrovascular accidents from thromobotic or thromboembolic disease involving the left posterior cerebral artery (PCA), which results in an infarct of the left occipital cortex and the splenium of the corpus callosum.
Is agraphia a type of aphasia?
Aphasia. Agraphia is the loss of the ability to write. Aphasia usually refers to the loss of the ability to speak. Alexia, on the other hand, is the loss of the ability to recognize words you once could read.
Can Alexia without agraphia be cured?
Patients who present with an inability to read with preserved visual acuity should be investigated further for a possibility of this rare phenomenon. Based on the literature review, treatment of alexia without agraphia is accomplished by rehabilitation by multiple oral re-reading techniques [10].
What lesion causes alexia?
Most cases of alexia without agraphia are caused by left posterior cerebral artery (PCA) occlusion and a resultant infarct of the left visual cortex as well as the splenium of the corpus callosum, which is the case here.