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KMID : 1100220060050020077
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Dementia and Neurocognitive Disorders
2006 Volume.5 No. 2 p.77 ~ p.80
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A Case of Acquired Mirror Writing Following the Corpus Callosum and the Left Anterior Cerebral Artery Infarctions
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Parl Jae-Seol
Kim Min-Ho
Yu Kyung-Ho
Lee Byung-Chul
Kang Yeon-Wook
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Abstract
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Mirror writing is formed by writing in the reverse direction than is natural for a given language such that the result is the mirror image of normal writing. This phenomenon rarely appears after brain damage and allows the gain of insight into the nervous system’s organization of visuospatial and visuomotor representation. We report the case of a 56-year-old hemiparetic woman with the symptom of mirror writing after suffering a left anterior cerebral artery infarction involving the corpus callosum. She presented right-left reversal of individual letters, writing leftward with the left hand on dictation, spontaneous writing, and copying. However, interestingly, she did not show any visuospatial disturbances, including right-left disorientation and hemispatial confusion. The case suggests that damage of the corpus callosum would result in the privileged access to mirrored graphemes that are normally suppressed in the right hemisphere.
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KEYWORD
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Mirror writing, Corpus callosum, Left ACA infarction
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