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Dysarthria is one of the most common signs of speech impairment in the cerebral palsy (CP) population. Facilitating strategies for speech enhancement in this population often include training on speech breathing. Treatment efficacy studies with cross-system measures in this population are needed for improved understanding and management of the interrelationship between respiratory, phonatory, and articulatory systems. The purpose of this study was to investigate the effect of breath group control on the coordination of articulatory and phonatory muscles and the acoustic measures related to speech and voice quality. A simultaneous acoustic, electroglottographic (EGG), and marker-based facial tracking recording system was employed to monitor the speech production behaviors of four adults with CP and 16 neurologically healthy controls. Subjects were instructed to perform three tasks, each containing speech targets with a voiceless plosive (/p/, /t/, or /k/) preceding a vowel (/i/, /a/, /u/, or /ɔ/). Task 1 consisted of a short reading passage embedded with target vowels without cueing from breath group markers. Task 2 included reading a series of monosyllabic and 3-syllable or 5-syllable non-speech words with the speech targets. Task 3 included reading the same short passage from Task 1 with cueing from breath group markers separating the passage into phrases with no more than five syllables per phrase. Measures from the acoustic, EGG and facial tracking recordings of the first and last syllable of all syllable trains produced in the non-speech task and the target vowels in the passage reading task were examined. Acoustic measures included voice onset time (VOT), vowel duration, fundamental frequency (F0), percent jitter (%jitter), percent shimmer (%shimmer), signal-to-noise ratio (SNR), and frequencies of Formants one and two (F1 and F2). EGG measures included speed quotient (SQ) and open quotient (OQ). Facial tracking measures consisted of maximum jaw displacement. Individual and averaged data were submitted to a series of two-way Analysis of Variances (ANOVAs) or two-way Repeated Measures ANOVAs to determine the effects of the relative position of an utterance in the breath group and the place of articulation of the consonants involved. In addition, mean vowel spaces derived from all three tasks were examined. Results revealed significant changes of VOT, F1, F2, SNR and SQ as a function of position. Significant changes of VOT, vowel duration, F2, F0, %jitter, %shimmer, and maximum jaw displacement as a function of place of articulation were also evident. In particular, breath group control was found to result in expansion of vowel space, especially for individuals with CP. These findings suggest that proper phrasing enhances articulatory and phonatory stability, providing empirical evidences in support of its usage in treating individuals with CP.

Thesis (M.S.)--Rochester Institute of Technology, 1990. / Includes bibliographical references (leaves 41-42).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1958. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 102-104).

Thesis (B.Sc)--University of Hong Kong, 2002. / "A dissertation submitted in partial fulfilment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, May 10, 2002." Also available in print.

Thesis (Ph.D.)--University of Florida, 2005. / Typescript. Title from title page of source document. Document formatted into pages; contains 84 pages. Includes Vita. Includes bibliographical references.

Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 183-200).

Conceptual Metaphor Theory (CMT, Lakoff & Johnson 1980; Lakoff, 1983, 1987, 1993, 2008, 2009), the most prominent cognitive approach to metaphor comprehension, argues that the nature of interconnections within the conceptual system is inherently metaphoric-analogical and that systematic patterns in linguistic metaphor reveal these cognitive interconnections. Relevance Theory (RT, Sperber & Wilson, 1986; Wilson & Sperber, 1993; Sperber & Wilson, 1995; Wilson & Sperber, 2002, 2004) and Graded Salience (GS, Giora, 1997, 1998, 1999, 2003; Peleg et al., 2008; Peleg & Giora, 2011) disagree that systematic patterns in linguistic metaphor can be taken as direct evidence of their cognitive representation. A metaphor consists of two concepts, a source and a target concept. The metaphor implies an analogy between the two concepts. To comprehend a metaphor is to infer under which conditions the implied analogy holds. The meaning of the two concepts is pragmatically enriched by these additional assumptions. Metaphor comprehension is an inferential process. The result of this process is the enriched meaning of the metaphor. This meaning can become conventionalised, in which case it often serves as an inferential shortcut: instead of having to consider all conceptually possible interpretations and their plausibility in the context of the analogy, speakers who are familiar with the conventional (i.e. idiomatic) meaning are provided with a default interpretation. According to CMT, the inferential process is a process of interconnecting primary embodied concepts to ever more complex higher-order concepts. On this view, a metaphoric idiomatic meaning is such a complex concept where the conceptual interconnections are conventional. According to RT, the inferential process is a process of inferring a meaning that is in line with the speaker's communicative intent, the discourse context, and interlocutors' expectations of the cognitive relevance of potential inferences. On this view, metaphoric idiomatic meanings are highly salient inferences with a high degree of contextual relevance because speakers' expectations of relevance are conventionalised. According to GS, the inferential process consists of two modules that work in parallel: a module that infers salient meanings based on linguistic knowledge and a module that enriches the meaning by taking non-linguistic knowledge such as conceptual, experiential, perceptual, contextual, and world knowledge into consideration. On this view, metaphoric idiomatic meanings are highly salient inferences because of speakers' knowledge of non-conceptual linguistic conventions. This thesis investigates the claims made by CMT, RT and GS by experimentally testing the cross-linguistic communicability of metaphoric proverbs with idiomatic meanings. Proverbs are selected such that the similarity of metaphors' source and target concepts, expectations of contextual relevance, and the degree of familiarity with proverbs' conventional wording is cross-linguistically maximised. If CMT is correct, then when cross-linguistic conceptual similarity is maximised in this way, monolingual native speakers should find L2 language-specific metaphors communicable. If RT and GS are correct, then monolingual native speakers should find L2-specific metaphors less communicable than L1-specific and non-language-specific metaphoric proverbs because they lack knowledge of the necessary non-conceptual linguistic conventions. Cross-linguistic metaphor communicability is measured in three ways in the experiments: (1) through reading/response times, (2) through plausibility judgements, and (3) through a context creation task. Results show that cross-linguistic metaphor communicability of L2-specific metaphors is lowered for monolingual native speakers on all three measures.

abstract: Distorted vowel production is a hallmark characteristic of dysarthric speech, irrespective of the underlying neurological condition or dysarthria diagnosis. A variety of acoustic metrics have been used to study the nature of vowel production deficits in dysarthria; however, not all demonstrate sensitivity to the exhibited deficits. Less attention has been paid to quantifying the vowel production deficits associated with the specific dysarthrias. Attempts to characterize the relationship between naturally degraded vowel production in dysarthria with overall intelligibility have met with mixed results, leading some to question the nature of this relationship. It has been suggested that aberrant vowel acoustics may be an index of overall severity of the impairment and not an "integral component" of the intelligibility deficit. A limitation of previous work detailing perceptual consequences of disordered vowel acoustics is that overall intelligibility, not vowel identification accuracy, has been the perceptual measure of interest. A series of three experiments were conducted to address the problems outlined herein. The goals of the first experiment were to identify subsets of vowel metrics that reliably distinguish speakers with dysarthria from non-disordered speakers and differentiate the dysarthria subtypes. Vowel metrics that capture vowel centralization and reduced spectral distinctiveness among vowels differentiated dysarthric from non-disordered speakers. Vowel metrics generally failed to differentiate speakers according to their dysarthria diagnosis. The second and third experiments were conducted to evaluate the relationship between degraded vowel acoustics and the resulting percept. In the second experiment, correlation and regression analyses revealed vowel metrics that capture vowel centralization and distinctiveness and movement of the second formant frequency were most predictive of vowel identification accuracy and overall intelligibility. The third experiment was conducted to evaluate the extent to which the nature of the acoustic degradation predicts the resulting percept. Results suggest distinctive vowel tokens are better identified and, likewise, better-identified tokens are more distinctive. Further, an above-chance level agreement between nature of vowel misclassification and misidentification errors was demonstrated for all vowels, suggesting degraded vowel acoustics are not merely an index of severity in dysarthria, but rather are an integral component of the resultant intelligibility disorder. / Dissertation/Thesis / Ph.D. Speech and Hearing Science 2012

102f. / Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2013-04-16T18:23:27Z No. of bitstreams: 1 Dissertacao Jose Ramosseg.pdf: 1260926 bytes, checksum: 53097fbd14c8bf40917c40b05a859d3d (MD5) / Approved for entry into archive by Rodrigo Meirelles(rodrigomei@ufba.br) on 2013-05-29T14:47:30Z (GMT) No. of bitstreams: 1 Dissertacao Jose Ramosseg.pdf: 1260926 bytes, checksum: 53097fbd14c8bf40917c40b05a859d3d (MD5) / Made available in DSpace on 2013-05-29T14:47:30Z (GMT). No. of bitstreams: 1 Dissertacao Jose Ramosseg.pdf: 1260926 bytes, checksum: 53097fbd14c8bf40917c40b05a859d3d (MD5) Previous issue date: 2008 / A presente dissertação tem por objetivo explicar a estruturação da ciência cartesiana proposta nas obras do Discurso do método e na Geometrie. O caminho percorrido para chegar ao objetivo proposto foi estudar a possibilidade da caracterização da noção metódica de inteligibilidade através da filosofia matemática de Descartes. A noção metódica de inteligibilidade é o procedimento analítico que estabelece o conhecimento verdadeiro sobre o campo restrito do entendimento. Esta noção metódica possibilita, em última instância, a construção cientifica através de parâmetros claros e distintos, os quais têm como ponto de partida o pensamento analítico, a concepção de perfeição em Deus e a regularidade do método nos pressupostos matemáticos da mathesis universalis. / Salvador