Mirror-reading and writing in association with right-left spatial disorientation. 1980

K M Heilman, and G Howell, and E Valenstein, and L Rothi

A left-handed patient suddenly developed a right hemiparesis, mirror-reading, and mirror-writing. Although he could discriminate between right and left on himself, he demonstrated right/left spatial disorientation. We propose that his right/left spatial disorientation was induced by a scanning defect. It has been demonstrated that mirror-image engrams are normally available. We believe that a reversal of the learned left-to-right scanning process with the availability of mirror engrams induced mirror-reading. Similarly, reversal of the normal left-to-right writing pattern, with the availability of mirror engrams, induced mirror-writing.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009949 Orientation Awareness of oneself in relation to time, place and person. Cognitive Orientation,Mental Orientation,Psychological Orientation,Cognitive Orientations,Mental Orientations,Orientation, Cognitive,Orientation, Mental,Orientation, Psychological,Orientations,Orientations, Cognitive,Orientations, Mental,Orientations, Psychological,Psychological Orientations
D004292 Dominance, Cerebral Dominance of one cerebral hemisphere over the other in cerebral functions. Cerebral Dominance,Hemispheric Specialization,Dominances, Cerebral,Specialization, Hemispheric
D006429 Hemiplegia Severe or complete loss of motor function on one side of the body. This condition is usually caused by BRAIN DISEASES that are localized to the cerebral hemisphere opposite to the side of weakness. Less frequently, BRAIN STEM lesions; cervical SPINAL CORD DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; and other conditions may manifest as hemiplegia. The term hemiparesis (see PARESIS) refers to mild to moderate weakness involving one side of the body. Monoplegia,Hemiplegia, Crossed,Hemiplegia, Flaccid,Hemiplegia, Infantile,Hemiplegia, Post-Ictal,Hemiplegia, Spastic,Hemiplegia, Transient,Crossed Hemiplegia,Crossed Hemiplegias,Flaccid Hemiplegia,Flaccid Hemiplegias,Hemiplegia, Post Ictal,Hemiplegias,Hemiplegias, Crossed,Hemiplegias, Flaccid,Hemiplegias, Infantile,Hemiplegias, Post-Ictal,Hemiplegias, Spastic,Hemiplegias, Transient,Infantile Hemiplegia,Infantile Hemiplegias,Monoplegias,Post-Ictal Hemiplegia,Post-Ictal Hemiplegias,Spastic Hemiplegia,Spastic Hemiplegias,Transient Hemiplegia,Transient Hemiplegias
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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