Final published version
Licence: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Modelling graded semantic effects in lexical decision
AU - Chang, Ya-Ning
AU - Lambon Ralph, Matthew
AU - Furber, Steve
AU - Welbourne, Stephen
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
KW - semantic effects
KW - visual word recognition
KW - lexical decision
KW - computational modelling
KW - reading
M3 - Conference contribution/Paper
SN - 9780976831891
SP - 310
EP - 315
BT - Proceedings of the35th Annual Conference of the Cognitive Science Society
A2 - Knauff, Markus
A2 - Pauen, Michael
A2 - Sebanz, Natalie
A2 - Wachsmuth, Ipke
PB - Cognitive Science Society
CY - Austin, TX
ER -