Vast amounts of neuropsychological evidence have been collected in recent years in support of the hypothesis that developmental dyslexia is caused not only by phonological deficits. but also by timing deficits that affect all senses (e.g., Tallal, Miller. & Fitch, 1995 Stein & Walsh. 1997). In parallel, recent developments in the study of Hebrew reading place heavy emphasis on root awareness in the mental lexicon and early root extraction in the process of word identification (e.g., Frost, Forster. & Deutch. 1997). The present study creates a link between the timing hypothesis and the special demands of Hebrew reading. The performance of dyslexics and normally reading children is compared on tasks requiring visual extraction of trigrams that approximates extracting roots out of Hebrew words. Partial findings show that dyslexics take longer and make more errors while performing trigram extractions on all levels examined, and that sequentiality in the task affects dyslexics and skilled readers in different ways. (C) 2002 Elsevier Science (USA).
机构:
Univ Hong Kong, Dept Psychol, Pok Fu Lam, Pokfulam Rd, Hong Kong, Peoples R ChinaUniv Hong Kong, Dept Psychol, Pok Fu Lam, Pokfulam Rd, Hong Kong, Peoples R China
Chen, Nga Ting
Zheng, Mo
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Univ Hong Kong, Dept Psychol, Pok Fu Lam, Pokfulam Rd, Hong Kong, Peoples R ChinaUniv Hong Kong, Dept Psychol, Pok Fu Lam, Pokfulam Rd, Hong Kong, Peoples R China
Zheng, Mo
Ho, Connie Suk-Han
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Univ Hong Kong, Dept Psychol, Pok Fu Lam, Pokfulam Rd, Hong Kong, Peoples R ChinaUniv Hong Kong, Dept Psychol, Pok Fu Lam, Pokfulam Rd, Hong Kong, Peoples R China
机构:
MIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USAMIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USA
Norton, Elizabeth S.
Black, Jessica M.
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Boston Coll, Grad Sch Social Work, Chestnut Hill, MA 02467 USAMIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USA
Black, Jessica M.
Stanley, Leanne M.
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Univ Calif San Francisco, Dept Psychiat, San Francisco, CA 94143 USA
Palo Alto Univ, Pacific Grad Sch Psychol, Palo Alto, CA 94304 USAMIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USA
Stanley, Leanne M.
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Tanaka, Hiroko
Gabrieli, John D. E.
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MIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USA
Inst Med Engn & Sci, Cambridge, MA 02139 USAMIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USA
Gabrieli, John D. E.
Sawyer, Carolyn
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Univ Calif San Francisco, Dept Psychiat, San Francisco, CA 94143 USA
Duke Univ, Sch Med, Dept Pediat, Durham, NC 27710 USAMIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USA