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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
271

Words in the Wilds

Snefjella, Bryor January 2019 (has links)
affect, concreteness, corpus linguistics, cognitive science, cognitive linguistics, stereotype accuracy, national character stereotypes, semantic prosody / Increasing use of natural language corpora and methods from corpus and computational linguistics as a supplement to traditional modes of scholarship in the social sciences and humanities has been labeled the "text as data movement." Corpora afford greater scope in terms of sample sizes, time, geography, and subject populations, as well as the opportunity to ecologically validate theories by testing their predictions within behaviour which is not elicited by an experimenter. Herein, five projects are presented, each either exploiting or taking inspiration from natural language data to make novel contributions to a subject matter area in the psychological sciences, including social psychology and psycholinguistics. Additionally, each project incorporates notions of word meaning grounded in psycholinguistic and psychoevolutionary theory, either the affective or sensorimotor connotations of words. This thesis ends with a discussion of the necessity of taking both experimental and observational approaches, as well as the challenge of how to link natural language data to psychological constructs. / Thesis / Doctor of Philosophy (PhD) / The internet and modern computers are changing how scientists study the mind. Instead of doing experiments within a laboratory, it is more and more common for cognitive scientists to observe patterns in online language use. These patterns in language use are then used to comment on how the mind works. Online language use is created by diverse people as they go about their lives. This is valuable for scientists studying the mind. Our experiments are often limited by how many people and which people do experiments. Sometimes, experiments can be misleading because people don't act in the real world like they do in a lab. This thesis has five studies, each using online language use to comment on some part of how the mind works. Also, each study involves how words make people feel, or whether a word refers to something you can see or touch. Studying real people as they communicate offers new perspectives on old ideas or unanswered questions.
272

Valence specific laterality effects in prosody: Expectancy account and the effects of morphed prosody and stimulus lead.

Rodway, Paul, Schepman, Astrid January 2007 (has links)
no / The majority of studies have demonstrated a right hemisphere (RH) advantage for the perception of emotions. Other studies have found that the involvement of each hemisphere is valence specific, with the RH better at perceiving negative emotions and the LH better at perceiving positive emotions [Reuter-Lorenz, P., & Davidson, R.J. (1981) Differential contributions of the 2 cerebral hemispheres to the perception of happy and sad faces.Neuropsychologia, 19, 609¿613]. To account for valence laterality effects in emotion perception we propose an `expectancy¿ hypothesis which suggests that valence effects are obtained when the top-down expectancy to perceive an emotion outweighs the strength of bottom-up perceptual information enabling the discrimination of an emotion. A dichotic listening task was used to examine alternative explanations of valence effects in emotion perception. Emotional sentences (spoken in a happy or sad tone of voice), and morphed-happy and morphed-sad sentences (which blended a neutral version of the sentence with the pitch of the emotion sentence) were paired with neutral versions of each sentence and presented dichotically. A control condition was also used, consisting of two identical neutral sentences presented dichotically, with one channel arriving before the other by 7 ms. In support of the RH hypothesis there was a left ear advantage for the perception of sad and happy emotional sentences. However, morphed sentences showed no ear advantage, suggesting that the RH is specialised for the perception of genuine emotions and that a laterality effect may be a useful tool for the detection of fake emotion. Finally, for the control condition we obtained an interaction between the expected emotion and the effect of ear lead. Participants tended to select the ear that received the sentence first, when they expected a `sad¿ sentence, but not when they expected a `happy¿ sentence. The results are discussed in relation to the different theoretical explanations of valence laterality effects in emotion perception.
273

Bare Nouns in Persian: Interpretation, Grammar, and Prosody

Modarresi, Fereshteh 09 June 2014 (has links)
This thesis explores the variable behavior of bare nouns in Persian. Bare singular nouns realize different grammatical functions, including subject, object and indirect object. They receive different interpretations, including generic, definite and existential readings. However, the task of understanding the reasons for, and limits on, this variation cannot be achieved without understanding a number of pivotal features of Persian sentential architecture, including Information Structure, prosody, word order, and the functions of various morphological markers in Persian. After a brief introduction, chapters 2-3 deal with bare noun objects, firstly comparing them with nominals marked with indefinite morpheme -i suffixed to the noun, and the determiner yek. A bare noun object differs from morphologically marked nominals as it shows properties associated with noun incorporation in the literature (chapter 2). Of particular interest are the discourse properties of these ‘quasi-incorporated’ nominals. With respect to the discourse transparency of Incorporated Nominals, Persian belongs to the class of discourse opaque languages within Mithun’s classification (1984). However, under certain circumstances, Persian bare nouns show discourse transparency. These circumstances are examined in chapter 3, and it is proposed that bare nouns do introduce a number neutral discourse referent. There are no overt anaphoric expressions that could match such number-neutral antecedents in Persian. But covert anaphora lack number features, and hence can serve as means to pick up a number-neutral discourse referent. Also, in case world knowledge tells us that the number-neutral discourse referent is anchored to an atomic entity or to a collection, then an overt singular pronoun or an overt plural pronoun might fit the combined linguistic and conceptual requirements, and may be used to pick up the number-neutral discourse referent. This proposal is phrased within Discourse Representation Theory. In the second half of the dissertation, the interpretation of bare nouns in different positions and with different grammatical functions are discussed. Under the independently supported hypothesis of position>interpretation mapping developed by Diesing (1992), we will see the role of the suffix -ra in indicating that an object has been moved out of VP. Following Diesing, I assume that VP-internal variables are subject to an operation of Existential Closure. In many cases, VP-external –ra-marked objects have a different interpretation to their VP-internal, non-ra-marked, counterparts, because of escaping Existential Closure. For subjects, there is no morphological marking corresponding to –ra on objects, and we have to rely on prosody and word order to determine how a VP is interpreted using theories of the interaction of accent and syntactic structure. We assume that VP-internal subjects exist, under two independent but converging assumptions. The first is prosodic in nature: Subjects can be accented without being narrowly focused; theories of Persian prosody predict then that there is a maximal constituent that contains both the subject and the verb as its head. The second is semantic in nature: Bare nouns require an external existential closure operation to be interpreted existentially, and we have to assume existential closure over the VP for our analysis of the interpretation of objects. So, this existential closure would provide the necessary quantificational force for bare noun subjects as well. It is proposed that both subject and object originate within the VP, and can move out to the VP-external domain. The motivation for these movements are informational-structural in nature, relating in particular to the distinctions between given and new information, and default and non-default information structure.
274

Bare Nouns in Persian: Interpretation, Grammar, and Prosody

Modarresi, Fereshteh January 2014 (has links)
This thesis explores the variable behavior of bare nouns in Persian. Bare singular nouns realize different grammatical functions, including subject, object and indirect object. They receive different interpretations, including generic, definite and existential readings. However, the task of understanding the reasons for, and limits on, this variation cannot be achieved without understanding a number of pivotal features of Persian sentential architecture, including Information Structure, prosody, word order, and the functions of various morphological markers in Persian. After a brief introduction, chapters 2-3 deal with bare noun objects, firstly comparing them with nominals marked with indefinite morpheme -i suffixed to the noun, and the determiner yek. A bare noun object differs from morphologically marked nominals as it shows properties associated with noun incorporation in the literature (chapter 2). Of particular interest are the discourse properties of these ‘quasi-incorporated’ nominals. With respect to the discourse transparency of Incorporated Nominals, Persian belongs to the class of discourse opaque languages within Mithun’s classification (1984). However, under certain circumstances, Persian bare nouns show discourse transparency. These circumstances are examined in chapter 3, and it is proposed that bare nouns do introduce a number neutral discourse referent. There are no overt anaphoric expressions that could match such number-neutral antecedents in Persian. But covert anaphora lack number features, and hence can serve as means to pick up a number-neutral discourse referent. Also, in case world knowledge tells us that the number-neutral discourse referent is anchored to an atomic entity or to a collection, then an overt singular pronoun or an overt plural pronoun might fit the combined linguistic and conceptual requirements, and may be used to pick up the number-neutral discourse referent. This proposal is phrased within Discourse Representation Theory. In the second half of the dissertation, the interpretation of bare nouns in different positions and with different grammatical functions are discussed. Under the independently supported hypothesis of position>interpretation mapping developed by Diesing (1992), we will see the role of the suffix -ra in indicating that an object has been moved out of VP. Following Diesing, I assume that VP-internal variables are subject to an operation of Existential Closure. In many cases, VP-external –ra-marked objects have a different interpretation to their VP-internal, non-ra-marked, counterparts, because of escaping Existential Closure. For subjects, there is no morphological marking corresponding to –ra on objects, and we have to rely on prosody and word order to determine how a VP is interpreted using theories of the interaction of accent and syntactic structure. We assume that VP-internal subjects exist, under two independent but converging assumptions. The first is prosodic in nature: Subjects can be accented without being narrowly focused; theories of Persian prosody predict then that there is a maximal constituent that contains both the subject and the verb as its head. The second is semantic in nature: Bare nouns require an external existential closure operation to be interpreted existentially, and we have to assume existential closure over the VP for our analysis of the interpretation of objects. So, this existential closure would provide the necessary quantificational force for bare noun subjects as well. It is proposed that both subject and object originate within the VP, and can move out to the VP-external domain. The motivation for these movements are informational-structural in nature, relating in particular to the distinctions between given and new information, and default and non-default information structure.
275

Die verband tussen leesvlotheid en leesbegrip van graad 4-leerders / Michelle O'Connor

O'Connor, Michelle January 2014 (has links)
Arising from the increasing demands of the twenty-first century workplace, concern over learner reading performance is at the forefront of national education. The increasing demands have raised the literacy bar for learners and subsequently, schools have been forced to accommodate instruction for these increased expectations. Successful reading requires the learner to incorporate a number of reading skills in appropriate ways. Oral reading fluency and reading comprehension are identified as components in effectively gaining meaning from text. A reciprocal relationship exist between the two that allows one to comprehend more thoroughly as one reads more fluently. Additionally, as one reads more fluently, one‟s ability to comprehend also improves. This is due to the fact that one‟s brain is more capable in processing text when one is able to read fluently. Therefore, when one automatically identifies words one is able to comprehend text more completely. The purpose of this study was to determine whether a linear relationship exists between Grade 4 learners‟ oral reading fluency on different types of tests and their reading comprehension. The study was conducted within a positivistic research paradigm. A one-shot crosssectional survey design was used to determine the relationship between oral reading fluency and reading comprehension of Grade 4 learners in selected schools in Kimberley in the Northern Cape Province. Five schools, representing the different quintiles, were selected to participate in the study. A total of 406 Grade 4 learners made up the study population. Two tests were developed and validated in order to assess the learners‟ oral reading fluency and reading comprehension. The data was analysed by means of descriptive statistics as well as Pearson product-moment correlations. The results indicate that learners in rural schools could only read at 52 words per minute (wpm) which meant that they could be grouped in the 10th percentile. With regard to reading comprehension the learners in the rural areas scored an average of 54% on the first reading comprehension test. Their results on the second comprehension test indicated that they experienced difficulties with inference questions. The results indicated that learners in urban schools read at 107.5 words per minute (wpm) which meant that they could be grouped between the 50th and 75th percentile. In their first reading comprehension test they scored an average of 78%. Their results on the second comprehension test indicated that they experienced difficulties with interpretation questions. Pearson product moment correlations indicated a practically significant difference between rural and urban schools on oral reading fluency and reading comprehension with urban schools outperforming rural schools. Overall, the results indicated a practically significant relationship of r = 0.69 between oral reading fluency and reading comprehension. The findings of this study should be noted by teachers as well as be addressed in interventions as a matter of urgency. / MEd (Learner Support), North-West University, Potchefstroom Campus, 2014
276

Die verband tussen leesvlotheid en leesbegrip van graad 4-leerders / Michelle O'Connor

O'Connor, Michelle January 2014 (has links)
Arising from the increasing demands of the twenty-first century workplace, concern over learner reading performance is at the forefront of national education. The increasing demands have raised the literacy bar for learners and subsequently, schools have been forced to accommodate instruction for these increased expectations. Successful reading requires the learner to incorporate a number of reading skills in appropriate ways. Oral reading fluency and reading comprehension are identified as components in effectively gaining meaning from text. A reciprocal relationship exist between the two that allows one to comprehend more thoroughly as one reads more fluently. Additionally, as one reads more fluently, one‟s ability to comprehend also improves. This is due to the fact that one‟s brain is more capable in processing text when one is able to read fluently. Therefore, when one automatically identifies words one is able to comprehend text more completely. The purpose of this study was to determine whether a linear relationship exists between Grade 4 learners‟ oral reading fluency on different types of tests and their reading comprehension. The study was conducted within a positivistic research paradigm. A one-shot crosssectional survey design was used to determine the relationship between oral reading fluency and reading comprehension of Grade 4 learners in selected schools in Kimberley in the Northern Cape Province. Five schools, representing the different quintiles, were selected to participate in the study. A total of 406 Grade 4 learners made up the study population. Two tests were developed and validated in order to assess the learners‟ oral reading fluency and reading comprehension. The data was analysed by means of descriptive statistics as well as Pearson product-moment correlations. The results indicate that learners in rural schools could only read at 52 words per minute (wpm) which meant that they could be grouped in the 10th percentile. With regard to reading comprehension the learners in the rural areas scored an average of 54% on the first reading comprehension test. Their results on the second comprehension test indicated that they experienced difficulties with inference questions. The results indicated that learners in urban schools read at 107.5 words per minute (wpm) which meant that they could be grouped between the 50th and 75th percentile. In their first reading comprehension test they scored an average of 78%. Their results on the second comprehension test indicated that they experienced difficulties with interpretation questions. Pearson product moment correlations indicated a practically significant difference between rural and urban schools on oral reading fluency and reading comprehension with urban schools outperforming rural schools. Overall, the results indicated a practically significant relationship of r = 0.69 between oral reading fluency and reading comprehension. The findings of this study should be noted by teachers as well as be addressed in interventions as a matter of urgency. / MEd (Learner Support), North-West University, Potchefstroom Campus, 2014
277

Developing an enriched natural language grammar for prosodically-improved concent-to-speech synthesis

Marais, Laurette 04 1900 (has links)
The need for interacting with machines using spoken natural language is growing, along with the expectation that synthetic speech in this context sound natural. Such interaction includes answering questions, where prosody plays an important role in producing natural English synthetic speech by communicating the information structure of utterances. CCG is a theoretical framework that exploits the notion that, in English, information structure, prosodic structure and syntactic structure are isomorphic. This provides a way to convert a semantic representation of an utterance into a prosodically natural spoken utterance. GF is a framework for writing grammars, where abstract tree structures capture the semantic structure and concrete grammars render these structures in linearised strings. This research combines these frameworks to develop a system that converts semantic representations of utterances into linearised strings of natural language that are marked up to inform the prosody-generating component of a speech synthesis system. / Computing / M. Sc. (Computing)
278

The role of vowel hyperarticulation in clear speech to foreigners and infants

Kangatharan, Jayanthiny January 2015 (has links)
Research on clear speech has shown that the type of clear speech produced can vary depending on the speaker, the listener and the medium. Although prior research has suggested that clear speech is more intelligible than conversational speech for normal-hearing listeners in noisy environments, it is not known which acoustic features of clear speech are the most responsible for enhanced intelligibility and comprehension. This thesis focused on investigating the acoustic characteristics that are produced in clear speech to foreigners and infants. Its aim was to assess the utility of these features in enhancing speech intelligibility and comprehension. The results of Experiment 1 showed that native speakers produced exaggerated vowel space in natural interactions with foreign-accented listeners compared to native-accented listeners. Results of Experiment 2 indicated that native speakers exaggerated vowel space and pitch to infants compared to clear read speech. Experiments 3 and 4 focused on speech perception and used transcription and clarity rating tasks. Experiment 3 contained speech directed at foreigners and showed that speech to foreign-accented speakers was rated clearer than speech to native-accented speakers. Experiment 4 contained speech directed at infants and showed that native speakers rated infant-directed speech as clearer than clear read speech. In the fifth and final experiment, naturally elicited clear speech towards foreign-accented interlocutors was used in speech comprehension tasks for native and non-native listeners with varying proficiency of English. It was revealed that speech with expanded vowel space improved listeners’ comprehension of speech in quiet and noise conditions. Results are discussed in terms of the Lindblom’s (1990) theory of Hyper and Hypoarticulation, an influential framework of speech production and perception.
279

Les locuteurs d’une langue tonale sont-ils de meilleurs musiciens? Effet potentiel de la connaissance native d’une langue à tons sur la perception du contraste du pitch

Li, Na 11 1900 (has links)
Ce mémoire consiste à offre un survol des études neuropsychologiques et électrophysiologiques concernant l’interaction possible entre le traitement du langage et la musique. Le but principal est de déterminer les raisons possibles pour lesquelles des locuteurs d’une langue à tons auraient une meilleure capacité dans la perception du contraste du pitch en musique par rapport aux individus qui ont pour langue maternelle une langue à intonation. Dans un premier temps, nous discutons du traitement neuronal de la prosodie et de la musique, tentant de montrer le chevauchement du traitement cérébral des deux domaines. Ensuite, nous présentons des notions d’une langue tonale ainsi que le traitement neuronal des tons lexicaux. Après, nous discutons des effets de transfert de la capacité du traitement du pitch en linguistique et en musique, en nous focalisant sur l’influence de la connaissance native d’une langue tonale sur la perception musicale. Pour ce faire, l’encodage du pitch et la localisation hémisphérique du traitement des tons lexicaux et la musique serons discutés. / This thesis gives an overview of neuropsychological and electrophysiological studies about the possible interaction between the processing of language and music. Our main purpose is to examine the possible reasons for which tone language speakers have a better capacity in perceiving pitch contrast in music than native speakers of an intonational language. First, we discuss the neural processing of prosody and music, attempting to show an overlap between the two domains. Next, we present the concept of a tone langue and the neural processing of lexical tones. Afterwards, we discuss the transfer effects of the processing capacity of pitch in linguistic and music by focusing on the influence of a knowledge of a tone language on the musical perception. To do this, the encoding of pitch and the hemispheric specialization will be discussed.
280

Prosodic detail in Neapolitan Italian

Cangemi, Francesco 29 October 2012 (has links)
De récentes découvertes sur le rôle du détail phonétique ont inspiré des modèles prosodiques basés sur une approche exemplariste. Au travers de quatre expériences portant sur la production et la perception du détail mélodique et temporel dans la variété napolitaine de l'italien, nous montrons que la notion de détail prosodique n'est pas non plus incompatible avec une approche abstractionniste. Plus particulièrement, nous suggérons que l'exploration du détail prosodique permettrait de mieux encadrer les rapports entre substance phonétique et formes phonologiques, en éclairant ainsi comment les fonctions pragmatiques sont véhiculée par la prosodie. / Recent findings on phonetic detail have been taken as supporting exemplar-based approaches to prosody. Through four experiments on both production and perception of both melodic and temporal detail in Neapolitan Italian, we show that prosodic detail is not incompatible with abstractionist approaches either. Specifically, we suggest that the exploration of prosodic detail leads to a refined understanding of the relationships between the richly specified and continuous varying phonetic information on one side, and coarse phonologically structured contrasts on the other, thus offering in-sights on how pragmatic information is conveyed by prosody.

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