Unidirectional dyslexia in a polyglot.
Alexia is usually seen after ischaemic insults to the dominant parietal lobe. A patient is described with a particular alexia to reading Hebrew (right to left), whereas no alexia was noted when reading in English. This deficit evolved after a hypertensive right occipitoparietal intracerebral haemorrhage, and resolved gradually over the ensuing year as the haematoma was resorbed. The deficit suggests the existence of a separate, language associated, neuronal network within the right hemisphere important to different language reading modes.
Leker
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RR
Department of Neurology, Hebrew University-Hadassah Medical School, Jerusalem, Israel. leker@cc.huji.ac.il
Biran
I
I
D000368:Aged; D002543:Cerebral Hemorrhage / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D004410:Dyslexia / Q000209:etiology*; D005500:Follow-Up Studies; D007839:Functional Laterality; D006801:Humans; D006973:Hypertension / Q000150:complications; D002546:Ischemic Attack, Transient / Q000150:complications*; D008279:Magnetic Resonance Imaging; D008297:Male; D019303:Multilingualism; D009415:Nerve Net / Q000503:physiopathology; D009778:Occipital Lobe / Q000000981:diagnostic imaging / Q000473:pathology; D011932:Reading; D012075:Remission, Spontaneous; D014057:Tomography, X-Ray Computed