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New Dissertation Abstract Institution: University of Illinois at Urbana-Champaign Program: Department of Linguistics Dissertation Status: Completed Degree Date: 2002 Author: Rajka Smiljanic Dissertation Title: Lexical, Pragmatic and Positional Effects on Prosody in Two Dialects of Croatian and Serbian: An Acoustic Study Linguistic Field: Phonology, Phonetics Dissertation Director 1: Jennifer S. Cole Dissertation Director 2: Jose I. Hualde Dissertation Director 3: Zsuzsanna Fagyal Dissertation Director 4: Hans H. Hock Dissertation Abstract: This thesis investigates the interplay of lexical, pragmatic and prosodic factors in determining the pitch contours and durational patterns in two dialects of Serbian and Croatian (S/C): the Belgrade dialect with lexical duration and pitch contrasts and the Zagreb dialect without such contrasts. More specifically, it examines the effects of lexical pitch and vowel length contrasts, of pragmatic narrow focus and of the position within a prosodic phrase on durational patterns and on the alignment of tonal targets, such as F0 peaks and valleys, with the segmental string through a comparative study of two dialects. Furthermore, this is an investigation of how the presence or absence of phonological contrasts in pitch and duration affects the expression of focus and how/if it constrains the effects of tonal crowding/proximity to intonational boundaries in these two dialects. The goal of this thesis is to answer the following related questions: 1) What role do lexical, pragmatic and prosodic factors play in shaping pitch contours and duration patterns in S/C? 2) How does the presence vs. absence of a lexical pitch and vowel length contrast limit pragmatic and prosodic effects on the alignment of pitch targets, on the pitch-range, and on duration? 3) Are there differences between pragmatic and prosodic boundary effects on F0 peak alignment? 4) How are distinct categories that are defined in the phonology of a language implemented phonetically? Briefly, the results of the acoustic studies conducted show that there is a difference between the two dialects in their phonological properties: as mentioned, the Belgrade dialect has a pitch-accent and vowel length contrast while the Zagreb dialect does not. Lexical pitch-accent and vowel length contrasts are found to influence the expression of pragmatic focus: the phonemic contrasts are enlarged in narrow focus. Tonal crowding in the phrase-final positions additionally affects tonal alignment regardless of the presence or absence of the lexical pitch-accent contrast. These results have implications for the typology of the prosodic systems, for Intonational Phonology, and for phonetic implementation of phonological contrasts.Mail to author|Respond to list|Read more issues|LINGUIST home page|Top of issue