Abstract
We report the case of a 51 year-old ambidextrous male who, following diffuse infarction of the right cerebral hemisphere, presented with agrammatism, with notable telegraphic speech. The telegraphic speech was particularly severe during free conversation, but mild during free writing and mild during speech and writing of an explanatory nature (writing or speaking about a given stimulus drawing).
In all four conditions of verbal testing, function words were often either omitted or substituted. Writing was rapid and fluent, but nearly illegible, and there were substitutions some of the kana (the Japanese syllabograms) and difficulties in remembering the kanji (the Japanese morphograms).
It is thought that these symptoms emerged due to the right hemispheric damage and an unusual lateralization of language functions in this ambidextrous subject.
