Adelman , J . S . , & Brown , G . D . A . Modeling lexical decision :

نویسندگان

  • James S. Adelman
  • Gordon D. A. Brown
چکیده

What is the root cause of word frequency effects on lexical decision times? Murray and Forster (2004) argued that such effects are linear in rank frequency, consistent with a serial search model of lexical access. This paper (i) describes a method of testing models of such effects that takes into account the possibility of parametric overfitting; (ii) illustrates the effect of corpus choice on estimates of rank frequency; (iii) gives derivations of nine functional forms as predictions of models of lexical decision; (iv) details the assessment of these models and the rank model against existing data regarding the functional form of frequency effects; and (v) reports further assessments using contextual diversity, a factor confounded with word frequency. The relationship between the occurrence distribution of words and lexical decision latencies to those words does not appear compatible with the rank hypothesis, undermining the case for serial search models of lexical access. Three transformations of contextual diversity based on extensions of instance models do however remain as plausible explanations of the effect. Modeling Lexical Decision 3 Modeling Lexical Decision: The Form of Frequency and

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تاریخ انتشار 2009