Deep dyslexia for kanji and phonological dyslexia for kana: Different manifestations from a common source

Authors: Sato, Hitomi¹; Patterson, Karalyn²; Fushimi, Takao³; Maxim, Jane⁴; Bryan, Karen⁵

Source: Neurocase, Volume 14, Number 6, December 2008 , pp. 508-524(17)

Publisher: Psychology Press, part of the Taylor & Francis Group

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Abstract:

A Japanese-speaking stroke patient with disrupted phonology but relatively good semantics was severely impaired in nonword reading, with better preserved and imageability-modulated word-reading in both kanji and kana. This basic similarity of reading in the two Japanese scripts was accompanied by the following differences: (i) distinct error patterns (prominent semantic errors for kanji vs. phonological errors for kana); (ii) a more pronounced imageability effect for kanji; and (iii) a remarkable pseudohomophone advantage for kana. The combination of deep dyslexia for kanji and phonological dyslexia for kana in a single patient suggests that these are not two distinct reading disorders.

Keywords: Deep dyslexia; Phonological dyslexia; Japanese orthography; Phonological impairment

Document Type: Research article

DOI: http://dx.doi.org/10.1080/13554790802372135

Affiliations: 1: Department of Rehabilitation, Yokufukai Hospital, Tokyo, Japan 2: MRC Cognition and Brain Sciences Unit, Cambridge, UK 3: Department of Rehabilitation, Kitasato University, Kanagawa, Japan 4: Department of Language and Communication, University College London, London, UK 5: Division of Health and Social Care, University of Surrey, Guildford, UK

Publication date: 2008-12-01