Category specific phonological dysgraphia

Preserved thematic and impaired taxonomic categorisation: A case study

“…Their separation is also confirmed from a study in which there was a selective difficulty in retrieving abstract words without an impairment in comprehension (Franklin, Howard & Patterson, 1995); thus ruling out damage to knowledge structures as causal for an impairment for abstract terms. A similar conclusion was drawn for two patients where the retrieval deficit was limited to written production (Baxter & Warrington, 1985;Hillis, Rapp & Caramazza, 1999). Of course, abstract words are generally less frequent, longer etc but these too have been shown insufficient to explain their difficulty in an anomic patient (Henaff Gonon, Bruckert & Michel, 1989).…”

Attentional strategic control over nonlexical and lexical processing in written spelling to dictation in adults

“…Second, the analyses of spelling errors exhibited by certain patients are consistent with the involvement of sublexical as well as lexical knowledge. In effect, some patients have been found to be able to produce nonwords while performing poorly on words, and more particularly, irregular words (e.g., Baxter & Warrington, 1987;Beauvois & Dérouesné, 1981;Behrmann & Bub, 1992;Goodman & Caramazza, 1986;Sanders & Caramazza, 1990), while the opposite observation has been reported in other patients (e.g., Baxter & Warrington, 1985;Bub & Kertesz, 1982;Shallice, 1981). This double dissociation has been taken as strong support for the existence of 59…”

Deafness for the meanings of number words

“…reported two such cases; one exhibited selective difficulty in producing spoken verbs versus spoken nouns but had no particular difficulty with written verbs or nouns; the other case had difficulty producing written verbs versus nouns, with sparing of spoken verbs and nouns (see also Baxter & Warrington, 1985;Berndt & Haendiges, 2000;Hillis & Caramazza, 1995b;Rapp & Caramazza, 1998). In addition, there have also been cases of single individuals who exhibit a double dissociation of grammatical category by modality.…”