We report the unusual case of AZO, who professionally used handwritten
shorthand writing, and became dysgraphic after a stroke. AZO suffered
fron a complex cognitive impairment, and part of her spelling errors
resulted from damage to auditory input processing, to phonology-orthog
raphy conversion procedures and to the ortographic output lexicon. How
ever, analysis of her writing performance showed that the same variabl
es affected response accuracy in alphabetic and shorthand writing; and
, that the same error types, including transpositions, were observed i
n all tasks in the two types of writing. These observations are consis
tent with damage to the graphemic buffer. They suggest that, in multip
le-code writing systems (e.g., stenography, Japanese, or in the case o
f multilingual speakers of languages that use different spelling codes
), the graphemic buffer is shared by all codes.