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Modelling Graded Semantic Effects in Lexical Decision
In: Chang, Ya-Ning; Ralph, Matthew Lambon; Furber, Steve; & Welbourne, Stephen. (2013). Modelling Graded Semantic Effects in Lexical Decision. Proceedings of the Cognitive Science Society, 35(35). Retrieved from: http://www.escholarship.org/uc/item/2rh366s1 (2013)
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Modelling graded semantic effects in lexical decision
Chang, Ya-Ning; Lambon Ralph, Matthew; Furber, Steve; Welbourne, Stephen. - : Cognitive Science Society, 2013
Abstract: Recent studies have shown that the involvement of semantic information in visual lexical decision depends on the nature of nonword foils with semantic effects increased as nonwords become more word-like (Evans, Lambon Ralph &Woollams, 2012). Given that most models of lexical decision focus on orthographic information (Coltheart, Rastle, Perry, Langdon & Ziegler, 2001; Grainger & Jacobs, 1996; Seidenberg & McClelland, 1989), the role of semantics and its interactions with vision, orthography, and phonology has been overlooked. We developed a recurrent connectionist model of single word reading including visual, orthographic, phonological, and semantic processing. The model differentiated words from nonwords by integrating measures of polarity across four key processing layers. The contribution of semantics depended on the type of nonword foils. The model was more reliant on semantic information when the nonword foils were pseudowords and pseudohomophones rather than consonant strings. The results support the view that semantic involvement in lexical decision is graded by the difficulty of the decision task.
URL: https://eprints.lancs.ac.uk/id/eprint/77134/
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3
Modelling normal and impaired letter recognition: Implications for understanding pure alexic reading
Chang, Ya-Ning; Furber, Steve; Welbourne, Stephen. - : Pergamon Press, 2012
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4
“Serial” effects in parallel models of reading
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5
Generating realistic semantic codes for use in neural network models
Chang, Ya-Ning; Furber, Steve; Welbourne, Stephen. - : Cognitive Science Society, 2012
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6
Modelling normal and impaired letter recognition:implications for understanding pure alexic reading
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7
“Serial” effects in parallel models of reading
Chang, Ya-Ning; Furber, Steve; Welbourne, Stephen. - : Academic Press, 2012
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