Linguistics

Lexical obsolescence is a topic whose study spans centuries, and yet it is not well-understood. Variously termed lexical mortality, lexical death, and lexical loss, among other names, the phenomenon has been described as both a product and a process, but the scholarship on how and why expressions go out of use has, until recently, been sporadic and sparse. The last few years have seen attempts to situate obsolescence among other processes of language change, but these have mostly focused on obsolescing constructions in modern languages. The present study, by contrast, investigates words that went obsolete in Late Middle English, suggesting a methodological approach designed to overcome the challenge of finding that which is no longer there, namely the consultation of a comprehensive online historical dictionary, and proposing an explanatory framework within the tradition of onomasiology and semasiology that positions obsolescence as a diachronic result of the habitual and contextually driven corporate deselection of linguistic constructions.

This thesis analyzed the effects of speaking style, either read or spontaneous speech, on vowel spaces and long-term formant distributions (LTFD), alongside other sociolinguistic effects (sex and age). The results indicated that formant frequencies were indeed modulated by speaking style, with vowel spaces showing centralization during spontaneous speech compared to read speech. LTFD showed an increase in frequency during spontaneous speech over read speech, particularly in the third long-term formant (LTF3). Sex and age were both significant factors for both vowel space and LTFD, with males and older speakers producing lower frequencies. The examination of the effect of speech style, sex and age on vowel space and LTFD allows us to better understand the factors that play a role in speech production.

Talmy (2007) was the first to propose a language typology based on the lexicalization patterns of motion verbs. According to his typology, certain languages tend to encode certain elements within the main verb of motion event descriptions. It has been proposed that Spanish and English exist on opposites sides of this typology and Slobin (1996 & 2006) speculates these structural differences may affect what aspects of external events are more salient to speakers of these languages.
The present study investigates the verbal and nonverbal behavior of English monolinguals and Spanish-English bilinguals to see if any differences exist in the aspects of the motion event that they describe in an elicitation task or prefer in a similarity judgement task. This study provides evidence that Spanish-English bilinguals may be less likely to encode manner when speaking in English. The present study provides no evidence that this extends to nonverbal behavior as all groups showed a preference for categorizing motion events based on the manner (e.g., run, walk, crawl, etc.) of motion rather than the path (up, down, left, right, etc.).

This project investigates how subjects' preferences for a specific argument structure of a verb affect the on-line processing of sentences. Three experiments are conducted. The first experiment uses a forced choice task to gather preference ratings for several verbs. The second and third experiments use these preference ratings to examine on-line performance for a subset of the subjects participating in Experiment I. We find that a subject's preference for a specific argument structure influences the first pass analysis of sentence but that this effect may be overridden by a structural effect in sentences containing syntactic ambiguities. These results are discussed in terms of lexical guidance vs. phrase structure-driven models of sentence processing. It is concluded that both lexical and phrase structure information are utilized during first pass analysis of a sentence, but that the structure of a sentence determines which of these effects is measurably observable.