| Context |
Briefly, P.S. speaks fluently and grammatically with hesitations or circumlocutions only in a few semantic categories. He presents with impairments of oral and written naming and comprehension, essentially restricted to the categories of animals and vegetables. Performance on oral reading and spelling to dictation in these categories is somewhat better than naming and comprehension a result that was attributed to some spared use of sublexical procedures for converting print to sound (orthography-to-phonology conversion, hereafter POC) and sound to print (phonology-to-orthography conversion, hereafter POC) perhaps operating in conjunction with the limited semantic information accessed for these categories (see Hillis and Caramazza 1991 for discussion of this hypothesis).
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