tailieunhanh - Báo cáo khoa học: "The grapho-phonological system of written French: Statistical analysis and empirical validation"

The processes through which readers evoke mental representations of phonological forms from print constitute a hotly debated and controversial issue in current psycholinguistics. In this paper we present a computational analysis of the grapho-phonological system of written French, and an empirical validation of some of the obtained descriptive statistics. | The grapho-phonological system of written French Statistical analysis and empirical validation Martelle Lange Laboratory of Experimental Psychology Université Libre de Bruxelles Av. . Roosevelt 50 Bruxelles Belgium B 1050 Bruxelles mlange@ Alain Content Laboratory of Experimental Psychology Université Libre de Bruxelles Av. . Roosevelt 50 Bruxelles Belgium B 1050 Bruxelles acontent@ Abstract The processes through which readers evoke mental representations of phonological forms from print constitute a hotly debated and controversial issue in current psycholinguistics. In this paper we present a computational analysis of the grapho-phonological system of written French and an empirical validation of some of the obtained descriptive statistics. The results provide direct evidence demonstrating that both grapheme frequency and grapheme entropy influence performance on pseudoword naming. We discuss the implications of those findings for current models of phonological coding in visual word recognition. Introduction One central characteristic of alphabetic writing systems is the existence of a direct mapping between letters or letter groups and phonemes. In most languages although to a varying extent the mapping from print to sound can be characterized as quasi-systematic Plaut McClelland Seidenberg Patterson 1996 Chater Christiansen 1998 . Thus descriptively in addition to a large body of regularities . the grapheme CH in French regularly maps onto Ị one generally observes isolated deviations . CH in CHAOS maps onto k as well as ambiguities. In some cases but not always these difficulties can be alleviated by considering higher order regularities such as local orthographic environment . c maps onto k or s as a function of the following letter phonotactic and phonological constraints as well as morphological properties Cf. PH in PHASE vs. SHEPHERD . One additional difficulty stems from the fact that the graphemes the orthographic .