Alexia
A loss of the ability to read or understand the written word, due to brain damage that disconnects these functions. From the Greek prefix “a- “ meaning “without” + “lexis”, meaning “word” = without word.
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An inability to comprehend the meaning of written or printed words and sentences, caused by a cerebral lesion. Also called optical a., sensory a., or visual a., in distinction to motor a. (anarthria), in which there is loss of the power to read aloud although the significance of what is written or printed is understood. SYN: text blindness, word blindness, visual aphasia (1). [G. a- priv. + lexis, a word or phrase]
- incomplete a. SYN: dyslexia.
- musical a. loss of the power to read musical notation. SYN: music blindness, note blindness.

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alex·ia ə-'lek-sē-ə n aphasia characterized by loss of ability to read
alex·ic -'lek-sik adj

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n.
an acquired inability to read. It is due to disease in the left hemisphere of the brain in a right-handed person. In agnosic alexia (word blindness) the patient cannot read because he is unable to identify the letters and words, but he retains the ability to write and his speech is normal. This is a form of agnosia. A patient with aphasic alexia (visual asymbolia) can neither read nor write and often has an accompanying disorder of speech. This is a form of aphasia. See also dyslexia.

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alex·ia (ə-lekґse-ə) [a-1 + Gr. lexis word + -ia] a form of receptive aphasia in which there is loss of the ability to understand written language as a result of a cerebral lesion; cf. dyslexia. Called also optical alexia, visual aphasia, and word blindness. alexic adj

Medical dictionary. 2011.

Look at other dictionaries:

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  • alexia — f. neurol. Incapacidad de comprender el significado de los signos escritos (de lectura) debido a una alteración de los centros del cerebro ligados a la función léxica. Medical Dictionary. 2011. alexia …   Diccionario médico

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  • Alexia — f English and German: variant of ALEXIS (SEE Alexis) as a female name. Cognate: Italian: Alessia …   First names dictionary

  • alexia — |cs| s. f. Neurose caracterizada pela impossibilidade de ler.   ‣ Etimologia: a + lexia …   Dicionário da Língua Portuguesa

  • alexia — (Del fr. alexie, y este de a 2 y el gr. λέξις, habla o dicción). f. Imposibilidad de leer causada por una lesión del cerebro …   Diccionario de la lengua española

  • alexia — [ə lek′sē ə, ālek′sē ə] n. [ModL < Gr a , without + lexis, word, speech < legein, to speak: see LOGIC] a loss of the ability to read, caused by lesions of the brain; word blindness …   English World dictionary

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