Alexia (disorder) 980143 225974278 2008-07-16T07:53:03Z Rcej 1612789 unreferenced {{unreferenced|date=July 2008}} {{Dyslexia}} {{DiseaseDisorder infobox | Name = {{PAGENAME}} | ICD10 = {{ICD10|R|48|0|r|47}} | ICD9 = {{ICD9|315.01}}, {{ICD9|784.61}} | ICDO = | Image = | Caption = | OMIM = | OMIM_mult = | MedlinePlus = | eMedicineSubj = | eMedicineTopic = | DiseasesDB = |}} '''Alexia''' (from the [[Greek language|Greek]] ''{{polytonic|ἀ}}'', [[privative a|privative]], expressing negation, and ''{{polytonic|λέξις}}'' = "word") is an acquired type of sensory [[aphasia]] where damage to the [[brain]] causes a patient to lose the ability to read. It is also called word blindness, text blindness or visual aphasia. == Causes == Alexia typically occurs following damage to the [[left hemisphere]] of the [[brain]] or to the areas of the [[occipital]] and [[parietal lobes]], which are responsible for processing auditory, phonological and visual aspects of language. The region at the junction of occipital and temporal lobes (sometimes called the occipito-temporal junction) coordinates information that is gathered from visual and auditory processing and assigns meaning to the stimulus. Alexia can also occur following damage to the inferior [[frontal lobe]], especially [[Broca's area]]. Damage to these different areas cortex result in somewhat different patterns of difficulty in affected individuals.now == Presentation == Alexia may be accompanied by expressive and/or receptive [[aphasia]] (the inability to produce or comprehend spoken language). Alexia can also co-occur with [[agraphia]], the specific loss of the ability to produce written language even when other manual motor abilities are intact. In other cases, damage is restricted to areas responsible for input processing. The result is known as [[alexia without agraphia]]. In this scenario, an individual's ability to produce written language is spared even though they are unable to understand written text. Alexia without agraphia results from a left occipital splenium of the [[corpus callosum]] lesion. == See also == * [[strephosymbolia]] * [[Visual agnosia]] * [[Dyslexia]] {{disease-stub}} {{Speech and voice symptoms and signs}} [[Category:Aphasias|Alexia (disorder)]] [[es:Alexia (lenguaje)]] [[it:Alessìa (medicina)]] [[la:Alexia]] [[nl:Alexie]] [[pl:Aleksja (medycyna)]] [[pt:Alexia (linguagem)]] [[sr:Алексија]] [[sv:Alexi]] [[uk:Алексія]]