This dissertation is a theoretical and experimental investigation of number marking in Yucatec Maya, a language in which number marking has different properties than better known Indo-European languages with inflectional plural marking and obligatory number agreement. The primary goal of this thesis is to propose a formal syntactic analysis of plural marking in Yucatec Maya in the nominal and verbal domains. I do this by examining the distribution and interpretation of the plural morpheme and by proposing an analysis within a Minimalist framework. The secondary goal is to investigate how the formal representation of plural marking interacts with real-time sentence processing mechanisms. I do this through timed translation experiments (and a picture description experiment) with bilingual speakers of Yucatec Maya and Spanish, two languages in which the formal representation of number marking and agreement differs. These experiments are tests of the formal syntactic analyses proposed in this thesis, and they examine the effect of language-particular syntax on sentence processing mechanisms. In the nominal domain, I argue that the plural marker is adjoined to the Determiner Phrase, rather than heading a Number Phrase, following the syntax of plural marking proposed by Wiltschko (2008). It merges as an adjunct to the DP, lacking the ability to change the label of the element with which it merges. This analysis explains the distributional and interpretational properties of plural marking as well as the otherwise peculiar lack of morphosyntactic persistence in certain conditions in an experimental translation task. I also propose an analysis of plural marking in the verbal domain and its relationship to word order. In verb-initial clauses, the aspect-mood particle is the main predicate in T⁰ which is φ-deficient. There is no Agree for number between the plural-marked full DP and verb due to the absence of C⁰ (Chomsky 2008). For DP-initial clauses, a DP bearing plural morphology moves to the CP domain, triggered by a topic or focus feature. The uninterpretable number feature on C⁰ probes via T⁰ for an interpretable valued feature in its domain (Chomsky 2001). This analysis predicts asymmetric number agreement in Yucatec Maya, which is tested experimentally.

The aim of this thesis is to design and implement a cognitively plausible theory of sentence processing which incorporates a mechanism for modeling a prediction and verification process in human language understanding, and to evaluate the validity of this model on specific psycholinguistic phenomena as well as on broad-coverage, naturally occurring text. Modeling prediction is a timely and relevant contribution to the field because recent experimental evidence suggests that humans predict upcoming structure or lexemes during sentence processing. However, none of the current sentence processing theories capture prediction explicitly. This thesis proposes a novel model of incremental sentence processing that offers an explicit prediction and verification mechanism. In evaluating the proposed model, this thesis also makes a methodological contribution. The design and evaluation of current sentence processing theories are usually based exclusively on experimental results from individual psycholinguistic experiments on specific linguistic structures. However, a theory of language processing in humans should not only work in an experimentally designed environment, but should also have explanatory power for naturally occurring language. This thesis first shows that the Dundee corpus, an eye-tracking corpus of newspaper text, constitutes a valuable additional resource for testing sentence processing theories. I demonstrate that a benchmark processing effect (the subject/object relative clause asymmetry) can be detected in this data set (Chapter 4). I then evaluate two existing theories of sentence processing, Surprisal and Dependency Locality Theory (DLT), on the full Dundee corpus. This constitutes the first broad-coverage comparison of sentence processing theories on naturalistic text. I find that both theories can explain some of the variance in the eye-movement data, and that they capture different aspects of sentence processing (Chapter 5). In Chapter 6, I propose a new theory of sentence processing, which explicitly models prediction and verification processes, and aims to unify the complementary aspects of Surprisal and DLT. The proposed theory implements key cognitive concepts such as incrementality, full connectedness, and memory decay. The underlying grammar formalism is a strictly incremental version of Tree-adjoining Grammar (TAG), Psycholinguistically motivated TAG (PLTAG), which is introduced in Chapter 7. I then describe how the Penn Treebank can be converted into PLTAG format and define an incremental, fully connected broad-coverage parsing algorithm with associated probability model for PLTAG. Evaluation of the PLTAG model shows that it achieves the broad coverage required for testing a psycholinguistic theory on naturalistic data. On the standardized Penn Treebank test set, it approaches the performance of incremental TAG parsers without prediction (Chapter 8). Chapter 9 evaluates the psycholinguistic aspects of the proposed theory by testing it both on a on a selection of established sentence processing phenomena and on the Dundee eye-tracking corpus. The proposed theory can account for a larger range of psycholinguistic case studies than previous theories, and is a significant positive predictor of reading times on broad-coverage text. I show that it can explain a larger proportion of the variance in reading times than either DLT integration cost or Surprisal.

In Texas, determinate sentencing allows extremely serious and violent delinquents one more chance to change their ways by releasing them to the streets instead of being transferred to prison. This research study examined the recidivism outcomes of 416 serious and violent juvenile offenders previously exposed to rehabilitative treatment in the renowned Capital and Serious Violent Offender Treatment Program provided by the Texas Youth Commission. Further, this research study looked to a group of 1,261 determinately sentenced offenders who did not participate in Capital and Serious Violent Offender Treatment Program but were released from Texas Youth Commission as well. Both groups of juveniles were followed for three years following their release from institutionalization. This analysis revealed that 50% of both groups were rearrested at least once during the follow-up period for any offense. Of the Capital and Serious Violent Offender Program participants, 81% were rearrested for at least one new felony offense. Of those non-participants, 78% were rearrested for at least one new felony offense. The factors that served to distinguish both groups included African-American race and a number of delinquent history measures. This study concludes with a discussion of policy implications and suggestions for future research.

Pas de résumé français / In this thesis, we investigated troubles of sentence processing in Huntington’s disease (HD) at earlystage, which represents a model of damage mainly confined to the striatum. The role of striatalstructures in sentence processing is agreed upon, but its nature is still controversial. Most studieshave reported a role of the striatum for complex sentences or more controlled processes withinsentence processing, but the interpretation of this pattern differs according to two main views.Some authors have proposed that striatal structures have a linguistic function restricted to somesub-processes of sentence processing, while others claim that the deficits detected depend on themodulation that executive function exerts on language and sentence processing. Here, we aimed atfilling the gap between these approaches by using a psycholinguistic perspective to investigate onthe one hand the role of executive functions, in particular, working memory, in sentenceprocessing, and on the other hand the nature of the linguistic discrepancies reported in associationto striatal lesions. We thus built experimental paradigms that allow dissociating fine-grainedlinguistic variations in healthy subjects, and transferred them to HD patients. The profile ofimpairment detected in our experiments showed that working memory and other sources ofcomplexity can interfere with sentence processing by decreasing accuracy, but an impairment ofspecific syntactic processes occurs when working memory is controlled for. The pattern of the finegrainedsyntactic impairment detected is consistent with a dissociation between more frequent/lesscontrolled (default) and less frequent/more controlled (non-default) procedures in sentenceprocessing. Additionally, we detected that this deficit occurs despite the fact that HD patients arestill able to process syntactic information, suggesting that striatal structures spare syntacticrepresentations while they are involved in correctly applying syntactic procedures in non-defaultcontexts. We propose that this pattern is explained by a role of striatal structures in selectingbetween competing alternatives during sentence processing, which results in an inability to adapt tothe sentence context for non-default procedures. This parallels the role of striatal structures for selecting between competing alternatives in order to adapt to the changing environment, as reportedin motor control and in other domains of cognition. Although the domain specificity of striatalinvolvement in language cannot be demonstrated, it is highly compatible with the results obtainedin this thesis. Hence, linguistic functions might be modulated by distinct cortico-striatal circuits: onthe one hand by selecting linguistic representations as a function of the context, and on the otherhand, by modulating performance in language through executive functions. The frameworkemerging from this work thus helps conciliating apparently incongruent findings reported in theliterature. Yet, future research should better characterize anatomo-functional correlates of thisproposal

Combining Outputs from Machine Translation Systems By Fahim A. Salim Supervised by: Ing. Zdenek Zabokrtsky, Ph.D Institute of Formal and Applied Linguistics, Charles University in Prague 2010. Abstract: Due to the massive ongoing research there are many paradigms of Machine Translation systems with diverse characteristics. Even systems designed on the same paradigm might perform differently in different scenarios depending upon their training data used and other design decisions made. All Machine Translation Systems have their strengths and weaknesses and often weakness of one MT system is the strength of the other. No single approach or system seems to always perform best, therefore combining different approaches or systems i.e. creating systems of Hybrid nature, to capitalize on their strengths and minimizing their weaknesses in an ongoing trend in Machine Translation research. But even Systems of Hybrid nature has limitations and they also tend to perform differently in different scenarios. Thanks to the World Wide Web and open source, nowadays one can have access to many different and diverse Machine Translation systems therefore it is practical to have techniques which could combine the translation of different MT systems and produce a translation which is better than any of the individual systems....

Faculty of Arts School of Human and Community Development 0000613a Tel: 011 849 3853 / South African Speech-Language Pathologists are assessing and treating many adolescents with varying speech and language difficulties. This task is complicated by the fact that it is currently largely unknown what the language abilities of mainstream adolescents are. Some research has suggested declining language abilities, as well as significant effects of grade, gender and language background on cognitive academic language skills. As individuals grow older, the demands of the classroom environment become greater, forcing adolescents to use complex language skills in order to learn. This research paper aimed to assess the complex sentence comprehension abilities of a sample of South African adolescents, through the use of the Grammar/Listening subtest of the Test of Adolescent Language, developed by Hammill, Brown, Larsen, and Wiederholt (1980). Additionally, the effects of grade, gender, language, time spent reading for school and recreationally each week, number of television programmes watched per week, length of time spent playing computer or video games per day, preferred learning styles (group/alone and auditory/visual/both), most recent English and school report marks, and use of cellular telephones, were used to determine related factors and educational variables which might be linked to each other. Additionally, a working memory measure was included, in order to ascertain that this factor was not having a negative effect upon the comprehension scores. It was found that gender was an over-riding factor throughout the study. Females tended to do better on the complex sentence comprehension test, and also spent more time reading for school each week, obtained better English and school report marks, preferred to learn alone, and sent more sms’s. Males were only inclined to play more computer or video games per week. In opposition to the initial hypothesis that these learners would perform poorly on the TOAL subtest, it was found that participants generally performed within the average limits of the test. Correlations, one-way ANOVA’s, chi squared analyses and t-tests were performed for the secondary aims, in order to determine any relationships between the variables. Overall, though, gender was the key variable in the study, which is in line with other literature in the field. Home language and educational level had minimal effects. Further research has been recommended.

Psycholinguistic evidence suggests that people predict upcoming words during language comprehension. While many studies have addressed what information people predict, less is known about the role of factors that potentially mediate predictive processing. This thesis examines predictions of semantic information and word form information. It investigates whether predictive processing is mediated by availability of cognitive resources and time to generate predictions, and compares predictive processing in native (L1) speakers and non-native (L2) speakers. This thesis presents two major lines of work. Two eye-tracking studies investigate prediction of semantic and word form information using a visual world paradigm. In further two ERP studies, we address the interplay of semantic and word form information in a paradigm which combines both possibilities. Experiments 1 and 2 were an eye-tracking study conducted on L1 and L2 speakers of English. The study has demonstrated that L1 and L2 speakers predict semantic information, but their predictive eye movements are delayed when they are under a cognitive load. The effects of cognitive load on predictive eye movements suggest a role of cognitive resources in language prediction in both L1 and L2 speakers. Experiments 3 and 4 were another eye-tracking study conducted on L1 and L2 speakers. The study has shown that L1 speakers predict word form information, but L2 speakers do not. Experiments 5 and 6 were an ERP study, which investigated the interplay of prediction of semantic and word form information in L1 English speakers. Consistent with the two sets of eye-tracking experiments, L1 speakers predicted both semantic and word form information, but word form was only predicted when sentences were presented at a slower rate, while semantic information was predicted at standard and slow presentation rates. Experiments 7 and 8 used the same method as Experiments 5 and 6, conducted on L2 English speakers. L2 speakers comprehended sentences incrementally, but there was no clear evidence that they predicted semantic information or word form information. Experiments 5 – 8 suggest that prediction of word form information is mediated both by nativeness of the target language and by reading rates. To conclude, both L1 and L2 speakers make predictions, but prediction of semantic information occurs only when there are enough cognitive resources available. Prediction of word form can occur in L1 speakers, but it occurs only when there is enough time available. There is no evidence that L2 speakers predict word form, suggesting a role of nativeness of the target language. The findings are consistent with the production-based prediction model of language prediction, in that prediction of word form is less likely to occur compared to prediction of semantic information. Furthermore, the findings are also consistent with the claim that not everyone makes predictions, and predictions do not always occur. The thesis concludes that prediction is additional processing for the comprehension system, and is not always implicated in the comprehension system.

The findings of this study predict that students who utilize five specific sentence constructions on timed single-draft writing compositions will have higher holistic scores than students who do not utilize the specific constructions. Students in the treatment group who were taught to use the five constructions through thorough and consistent instruction in a semester length first year writing course showed statistically significant gains, 4.698 points on a 0-18 scale, based on comparison of pre-test and post-test writing samples. The findings suggest that specific style instruction at the sentence level should be part of the first year writing course curriculum, and possibly in the writing curriculum of secondary education as well.

The present study explores the role of the word position-in-text in sentence and paragraph reading. Three eye-movement data sets based on the reading of Dutch and German unrelated sentences reveal a sizeable, replicable increase in reading times over several words in the beginning and the end of sentences. The data from the paragraphbased English-language Dundee corpus replicate the pattern and also indicate that the increase in inspection times is driven by the visual boundaries of the text organized in lines, rather than by syntactic sentence boundaries. We argue that this effect is independent of several established lexical, contextual and oculomotor predictors of eye-movement behavior. We also provide evidence that the effect of word position-intext has two independent components: a start-up effect arguably caused by a strategic oculomotor program of saccade planning over the line of text, and a wrap-up effect originating in cognitive processes of comprehension and semantic integration.

<p>The detention of juvenile offenders is not encouraged by both the Constitution and a number of international instruments. This right is entrenched in the South African Constitution (section 28(1)(g) ) which provides that every child has the right not to be detained except as a measure of last resort in which case, in addition to the rights a child enjoys under section s12 and 35, the child may be detained only for the shortest appropriate period of time. This Constitutional provision, in clear terms, views the incarceration of juvenile offenders in a serious light as it provides that the detention of juvenile offenders should be a measure of last resort. One of the important international instruments, the United Nations Convention on the Rights of the Child, (Article 37(b) provides that children may be arrested, detained or imprisoned &ldquo / only as a measure of last resort and for the shortest possible period of time&rdquo / . This thesis examines the impact of the Constitution and some international instruments on the Criminal Law Amendment Act, 105 of 1997 with regard to juvenile offenders. It also sets out the current legal position in South Africa with regard to sentencing of juvenile offenders.</p>