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Article: Direct access from meaning to orthography in Chinese: A case study of superior written to oral naming

TitleDirect access from meaning to orthography in Chinese: A case study of superior written to oral naming
Authors
Issue Date2006
PublisherPsychology Press. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/02687038.asp
Citation
Aphasiology, 2006, v. 20 n. 6, p. 565-578 How to Cite?
AbstractBackground: For alphabetic scripts, the obligatory phonological mediation hypothesis about written language processing has been seriously challenged by case reports of acquired dyslexia and dysgraphia. Evidence against the hypothesis mainly comes from superior performance on written production over oral production of the same lexical items. In Chinese, the absence of grapheme-to-phoneme conversion, the presence of a character component providing a semantic cue to the meaning of many phonetic compound characters, and the great extent of homophony have led to the view that the orthography is meaning based rather than speech based. However, psycholinguistic studies of character recognition have obtained conflicting results regarding the relative time course of activation of phonological vs semantic information. Aims: This paper addresses the phonological mediation hypothesis through describing the performance pattern of a Cantonese-speaking brain-injured individual, LKY, on tasks involving oral and written production of single Chinese words. Methods and Procedures: The range of tasks administered to LKY included visual-spatial analysis, auditory discrimination, written and spoken lexical decision, repetition, oral and written picture naming, reading aloud and writing-to-dictation of object names, homophone identification and judgements, and verbal and non-verbal semantic tests. Outcomes and Results: LKY performed normally on tasks assessing the processing of visual, auditory, orthographic, and verbal input. He was moderately impaired in repeating words and phrases. His performance on the two naming tasks, reading aloud, and writing-to-dictation was clearly disrupted. In addition, he was unable to retrieve phonological information from orthographic input, given his poor ability to make homophone judgements and identification. While he could select objects that are functionally related in non-verbal semantic tests, he was impaired in accessing meaning from verbal materials. The most significant features of his performance pattern were his superior written over oral picture naming and better written naming than writing-to-dictation of the same stimuli. Conclusions: The discrepancies in performance between oral and written naming and between the written tasks with pictorial vs oral input were due to deficits at the phonological level. Such dissociations support the view that written production of Chinese, similar to the situation with alphabetic writing systems, is not parasitic on phonology, and thereby disconfirm the obligatory phonological mediation hypothesis. © 2006 Psychology Press Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/82508
ISSN
2015 Impact Factor: 1.139
2015 SCImago Journal Rankings: 0.730
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLaw, SPen_HK
dc.contributor.authorWong, Wen_HK
dc.contributor.authorKong, Aen_HK
dc.date.accessioned2010-09-06T08:30:10Z-
dc.date.available2010-09-06T08:30:10Z-
dc.date.issued2006en_HK
dc.identifier.citationAphasiology, 2006, v. 20 n. 6, p. 565-578en_HK
dc.identifier.issn0268-7038en_HK
dc.identifier.urihttp://hdl.handle.net/10722/82508-
dc.description.abstractBackground: For alphabetic scripts, the obligatory phonological mediation hypothesis about written language processing has been seriously challenged by case reports of acquired dyslexia and dysgraphia. Evidence against the hypothesis mainly comes from superior performance on written production over oral production of the same lexical items. In Chinese, the absence of grapheme-to-phoneme conversion, the presence of a character component providing a semantic cue to the meaning of many phonetic compound characters, and the great extent of homophony have led to the view that the orthography is meaning based rather than speech based. However, psycholinguistic studies of character recognition have obtained conflicting results regarding the relative time course of activation of phonological vs semantic information. Aims: This paper addresses the phonological mediation hypothesis through describing the performance pattern of a Cantonese-speaking brain-injured individual, LKY, on tasks involving oral and written production of single Chinese words. Methods and Procedures: The range of tasks administered to LKY included visual-spatial analysis, auditory discrimination, written and spoken lexical decision, repetition, oral and written picture naming, reading aloud and writing-to-dictation of object names, homophone identification and judgements, and verbal and non-verbal semantic tests. Outcomes and Results: LKY performed normally on tasks assessing the processing of visual, auditory, orthographic, and verbal input. He was moderately impaired in repeating words and phrases. His performance on the two naming tasks, reading aloud, and writing-to-dictation was clearly disrupted. In addition, he was unable to retrieve phonological information from orthographic input, given his poor ability to make homophone judgements and identification. While he could select objects that are functionally related in non-verbal semantic tests, he was impaired in accessing meaning from verbal materials. The most significant features of his performance pattern were his superior written over oral picture naming and better written naming than writing-to-dictation of the same stimuli. Conclusions: The discrepancies in performance between oral and written naming and between the written tasks with pictorial vs oral input were due to deficits at the phonological level. Such dissociations support the view that written production of Chinese, similar to the situation with alphabetic writing systems, is not parasitic on phonology, and thereby disconfirm the obligatory phonological mediation hypothesis. © 2006 Psychology Press Ltd.en_HK
dc.languageengen_HK
dc.publisherPsychology Press. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/02687038.aspen_HK
dc.relation.ispartofAphasiologyen_HK
dc.rightsAphasiology. Copyright © Psychology Press.en_HK
dc.titleDirect access from meaning to orthography in Chinese: A case study of superior written to oral namingen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0268-7038&volume=20&spage=565&epage=578&date=2006&atitle=Direct+access+from+meaning+to+orthography+in+Chinese:+A+case+study+of+superior+written+to+oral+namingen_HK
dc.identifier.emailLaw, SP: splaw@hku.hken_HK
dc.identifier.authorityLaw, SP=rp00920en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1080/02687030600591799en_HK
dc.identifier.scopuseid_2-s2.0-33745684852en_HK
dc.identifier.hkuros118621en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33745684852&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume20en_HK
dc.identifier.issue6en_HK
dc.identifier.spage565en_HK
dc.identifier.epage578en_HK
dc.identifier.isiWOS:000238202200004-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLaw, SP=7202242088en_HK
dc.identifier.scopusauthoridWong, W=13307653300en_HK
dc.identifier.scopusauthoridKong, A=35102604800en_HK
dc.identifier.citeulike668821-

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