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ERIC Number: EJ896710
Record Type: Journal
Publication Date: 2010-Sep
Pages: 23
Abstractor: As Provided
Reference Count: 60
ISSN: ISSN-0278-7393
Making Things Difficult in Lexical Decision: The Impact of Pseudohomophones and Transposed-Letter Nonwords on Frequency and Semantic Priming Effects
Lupker, Stephen J.; Pexman, Penny M.
Journal of Experimental Psychology: Learning, Memory, and Cognition, v36 n5 p1267-1289 Sep 2010
Performance in a lexical decision task is crucially dependent on the difficulty of the word-nonword discrimination. More wordlike nonwords cause not only a latency increase for words but also, as reported by Stone and Van Orden (1993), larger word frequency effects. Several current models of lexical decision making can explain these types of results in terms of a single mechanism, a mechanism driven by the nature of the interactions within the lexicon. In 2 experiments, we replicated Stone and Van Orden's increased frequency effect using both pseudohomophones (e.g., BEEST) and transposed-letter nonwords (e.g., JUGDE) as the more wordlike nonwords. In a 3rd experiment, we demonstrated that simply increasing word latencies without changing the difficulty of the word-nonword discrimination does not produce larger frequency effects. These results are reasonably consistent with many current models. In contrast, neither pseudohomophones nor transposed-letter nonwords altered the size of semantic priming effects across 4 additional experiments, posing a challenge to models that would attempt to explain both nonword difficulty effects and semantic priming effects in lexical decision tasks in terms of a single, lexically driven mechanism. (Contains 2 tables and 5 footnotes.)
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Canada