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Disruption of residual reading capacity in a pure alexic patient after a mirror-image right-hemispheric lesion

Paolo Bartolomeo, MD, PhD, Anne-Catherine Bachoud-Lévi, MD, Jean-Denis Degos, MD and Franois Boller, MD, PhD

From the INSERM Unit 324 (Drs. Bartolomeo and Boller), Paris; LSCP, EHESS, CNRS (Dr. Bachoud-Lévi), Paris; and Neuroscience Department(Drs. Degos, Bartolomeo, and Bachoud-Lévi), Hôpital Henri-Mondor, Créteil, France.

Address correspondence and reprint requests to Dr. Paolo Bartolomeo, INSERM Unit 324, Centre Paul Broca, 2ter rue d'Alésia, F-75014 Paris, France.

A 74-year-old woman became a letter-by-letter reader after the occurrence of a left occipito-temporal hematoma. Seven months later, she suffered a second, mirror-image hematoma in the right hemisphere. After this second lesion, her residual reading capacity deteriorated dramatically in terms of both accuracy and reading latencies for words and isolated letters. Our findings support the hypothesis that the right hemisphere contributes to the residual reading capacities of pure alexic patients.

Supported by the European Union grant ERBCHBGCT930344 to Dr. Bartolomeo.

Received April 17, 1997. Accepted in final form June 3, 1997.

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