Annals of Indian Academy of Neurology
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Year : 2006  |  Volume : 9  |  Issue : 4  |  Page : 233-235

"Mirror agnosia" in a patient with right occipitotemporal infarct

Institute of Neurology, Madras Medical College, Chennai, India

Correspondence Address:
K R Shanbhogue
Institute of Neurology, Madras Medical College and Govt. General Hospital, Chennai - 600 003
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-2327.29207

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We report the clinical profile and investigation of K, a patient suffering from agnosia for the concept of "mirrors". Normal people rarely confuse a mirror image for the real image. Our patient 'K' has intact attention, memory and language with a left visual neglect with left hemianopia. When shown an object on his left with a mirror kept sagitally on his right, K grabs for the reflection and even gropes behind the mirror for it. Yet, when shown the mirror alone, he is able to tell that it is a mirror. Thus the concept of a 'mirror' is lost in the experimental paradigm. An explanation for mirror 'agnosia' is provided and recent controversies in the analysis of visuospatial functions in humans is highlighted.

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