alexia


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alexia

 [ah-lek´se-ah]
a form of receptive aphasia in which there is inability to understand written language. adj., alex´ic.

a·lex·i·a

, optic alexiasensory alexiavisual alexiamotor alexia (ă-lek'sē-ă),
An inability to comprehend the meaning of written or printed words and sentences, caused by a cerebral lesion. Also called optic alexia, sensory alexia, visual alexia, to differentiate from motor alexia (anarthria), in which there is loss of the power to read aloud even though the significance of what is written or printed is understood.
[G. a- priv. + lexis, a word or phrase]

alexia

/alex·ia/ (ah-lek´se-ah) a form of receptive aphasia in which ability to understand written language is lost as a result of a cerebral lesion.alex´ic
cortical alexia  a form of sensory aphasia due to lesions of the left gyrus angularis.
motor alexia  alexia in which the patient understands what he sees written or printed, but cannot read it aloud.
musical alexia  loss of the ability to read music.
optical alexia  alexia.
subcortical alexia  a form due to interruption of the connection between the optic center and the parietal lobe, including the gyrus angularis of the dominant hemisphere.

alexia

(ə-lĕk′sē-ə)
n.
Loss of the ability to read, usually caused by brain lesions. Also called word blindness.

alexia

See word blindness. alexic, adj.

alexia

Neurology
1. Inability to understand printed words or sentences.
2. Loss of a previously possessed reading facility that is unexplained by defective visual acuity Psychiatry Loss of the ability to grasp the meaning of written or printed words and sentences. See Dyslexia.

a·lex·i·a

(ă-lek'sē-ă)
An inability to comprehend the meaning of written or printed words and sentences, caused by a cerebral lesion. Also called optic alexia, sensory alexia, or visual alexia, in distinction to motor alexia (anarthria), in which there is loss of the power to read aloud although the significance of what is written or printed is understood.
Synonym(s): text blindness, word blindness, visual aphasia (1) .
[G. a- priv. + lexis, a word or phrase]

alexia

Word blindness. The inability to read, occurring as a result of brain damage, usually from arterial disease. Alexia is common after stroke affecting the left side of the brain with damage to the fibres connecting the visual part of the brain and the part concerned with the function of reading in the left angular gyrus. The word is derived from the Greek a , not and legein , to speak.

alexia 

Inability to recognize written or printed words due to a lesion in the brain. This is a form of visual agnosia. Syn. word blindness. See agnosia; dyslexia.

a·lex·i·a

(ă-lek'sē-ă)
Inability to comprehend the meaning of written or printed words and sentences, caused by a cerebral lesion.
[G. a- priv. + lexis, a word or phrase]
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