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Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.

Thesis (Ph.D.)--York University, 2006. Graduate Programme in Psychology. / Typescript. Includes bibliographical references (leaves 233-251). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:NR29504

The simultaneity judgment (SJ) and temporal order judgment (TOJ) tasks are the two widely used methods for measuring the window of multisensory integration; however, there are some indications that these two tasks involve different cognitive processes and therefore produce unrelated results. The present study measured observers’ visuotactile window of integration using these two tasks in order to examine whether or not SJs and TOJs produce consistent results for this particular pairing of modalities. Experiment 1 revealed no significant correlations between the SJ and TOJ tasks, indicating that they appear to measure distinct processes in visuotactile integration, and in addition showed that both sensory and decisional factors contribute to this difference. These findings were replicated in Experiment 2, which, along with Experiment 3, also showed that the reliability of the SJ and TOJ tasks may in part be responsible for the lack of agreement between these two tasks. A secondary result concerned the point of subjective simultaneity (PSS), which were tactile-leading across all three experiments. This contradicts some of the previous literature in visuotactile integration. Manipulating the spatial distance between the visual and tactile stimulus (Experiment 2) and the certainty of stimulus location (Experiment 3) did not lead to significant changes of the location of the PSS. / Thesis / Master of Science (MSc) / Perception often involves the use of more than one sensory modality at the same time; for example, touching an object usually produces sensory signals in the visual and tactile modalities. Since the amount of time needed to transmit and process sensory signals is different among the modalities, the brain allows for a certain time difference between signals of various pairs of modalities that it will consider as coming from one event. Two tasks commonly used to measure these allowable time differences are the simultaneity judgment (SJ) and temporal order judgment (TOJ) tasks. Although they are usually used interchangeably, the present data show that the results from these tasks in the visuotactile pairing of modalities are unrelated, and a major contributing reason appears to be that these tasks are not the most reliable.

After exposure to a short, constant delay between voluntary movement and sensory stimuli, temporal recalibration (TR) arises to realign asynchronous stimuli. The objective of this study was to determine if awareness of the temporal lag between a motor response (i.e., a keypress) and a sensory event (i.e., a visual flash) is necessary for TR to occur. We further investigated whether manipulating the motor and judgment tasks required modifies the influence of awareness on TR due to the cognitive processes engaged. Participants (n = 22) were randomly divided between two groups (Group 1: Aware and Group 2: Unaware). The Aware group was told of the temporal lag between their keypress and visual flash at the beginning of the experiment, whereas the Unaware group was not. All participants completed 8 blocks of trials, in which the motor tasks (e.g., a single or repetitive tap), judgment tasks (e.g., judging the order of the keypress in relation to the visual flash or judging whether the two stimuli were simultaneous or not), and temporal lag between keypress and visual flash (e.g., a 0 ms or 100 ms lag) varied. TR was determined by comparing judgments between corresponding blocks of trials in which the temporal lag was 0 ms to 100 ms. Results revealed that both the Aware and Unaware groups of participants demonstrated TR across both motor and judgment tasks, and that the magnitude of TR did not vary across Aware and Unaware participants or tasks. Thus, results of the present study revealed that awareness of a temporal lag does not influence the magnitude of motor-sensory TR achieved.

The concept of economic development has broadened to include environmental quality and population health. Interactions between income and pollution, income and health, and pollution and health have been studied separately by researchers from various disciplines. This study attempts to unify several different research strands and analyze simultaneous interactions between population health, measured by the infant mortality rate, pollution, and income in one endogenous system. Socioeconomic, racial, and rural urban disparities in infant mortality, pollution, and income are analyzed. The simultaneous equation system, estimated using the two-stage least squares method, tests whether pollution effects on infant mortality are outweighed by income effects. The study finds that income is a stronger determinant of infant mortality than pollution. Evidence for the environmental Kuznets curve is ambiguous. Disparities in infant mortality, pollution, and income are correlated with counties rural-urban status, income inequality, and ethnic diversity. Regional patterns identify wide geographical differences in levels of pollution, income, and infant mortality. The Southeast region stands out as a region with the highest infant mortality rate, relatively high levels of air pollution and chemical releases, and low per capita incomes.

This project consists of an original composition, Voci Lontani, and a critical essay about the composition. In this piece, the idea of musical simultaneity is explored. Therefore, the piece focuses on the idea of contrast: between measured rhythms and indeterminate rhythms, between tonality and atonality, and between musics in separate tempos. In order to explore the significance of musical simultaneity, four important compositional concepts-the simultaneous juxtaposition of different musics, polyrhythmic structure, controlled indeterminacy, and quotation-are discussed. Also, several examples of twentieth-century music that use these concepts are analyzed in the essay.

In this thesis, I examine Kant's conception of simultaneity in relation to the idea of the empirical determinacy of time. I begin by introducing the concepts of time and simultaneity in Newton and Leibniz, and demonstrate how these two modern conceptions of time contributed to Kant's understanding of simultaneity and cosmological unity. It will be argued that Kant's conception of simultaneity was intended to account for the possibility of the rational determination of time, and that for this purpose, Kant sought to reinterpret the Principle of Sufficient Reason in his early writings by linking it to the simultaneity-relation between substances in reciprocal interaction, thus arguing for the possibility of coexistence between substances. This provides a way to understand how the unity of the world is fundamental to Kant's understanding of the rational determination of time and space. In Kant's critical period the relation of simultaneity is analysed as empirically realized through mutual interaction, but the pure manifold of time is thought to be intuitional, which requires the implementation of relational categories in order to be reproduced in experience. In the Third Analogy of the First Critique, the concept of mutual interaction is analysed in terms of balanced forces, which provides a means of describing the evolution of a dynamical system over time. It provides the process by which the connection between different dynamical systems is possible, and also for the synchronization of different clocks.

The present study deals with the French gerund and the Swedish syntactic correspondences in a parallel corpus. The analysis is based on 3,988 authentic instances of the gerund and their corresponding structures in Swedish texts. These are collected in a corpus consisting of 13 original contemporary French novels and 13 original contemporary Swedish novels, including their respective translations. The main purpose is to identify the Swedish corresponding structures and consider how, and to what extent, they transmit the integrative function and the adverbial interpretations of the French gerund.   Nine Swedish reoccurring structures are discerned, including the most common: coordinated clauses and adverbial clauses. The study shows that the nine Swedish structures share the integrative capacity of the gerund to different degrees, as well as how they transmit the adverbial interpretations in various ways. Some Swedish syntactic structures correlate with particular adverbial interpretation of the gerund. Another aim is to contribute to the existing research on the French gerund: the semantic analysis of the corpus has led to question – with authentic examples – the alleged absolute inability of the gerund to denote an eventuality that is the consequence of the eventuality denoted by the superordinate clause. The study also reveals, in light of Swedish corresponding structures, the relationship between certain adverbial interpretations of the gerund and more independent syntax in French.

This document will outline the nature of performance / object interaction, and the role of documentation in this interaction. In addition, I will explore the body / object as a site of multiplicities, the quality of simultaneity in appearance and apprehension of such multiplicities, and traverse the triumphs and travails of the body / object’s journey from one state of being to the next.