alexia (redirected from cortical alexia)

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.

---

a·lex·i·a (-lks-)

n.

Loss of the ability to comprehend the meaning of written or printed words and sentences, usually caused by brain lesions. Also called text blindness, visual aphasia, word blindness.

---

a·lexic adj.

---

alexia.

See word blindness. alexic, adj.

---

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.

---

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.