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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.
1

Typicality in Chinese sentence processing : evidence from offline judgment and online self-paced reading

Chen, Po-Ting 06 November 2014 (has links)
This study examines how Chinese speakers understand sentences describing events that have varying degrees of typicality. How the interpretation of typicality is obtained from linguistic input is not fully understood. In this study, I investigate the association of pairs of content words in order to determine their contribution to judgments of event typicality. The associations between words could influence the interpretation of event typicality. Two words that are not associated semantically, for example baby and wine, may be seen as an atypical combination. However, when these words are placed in a sentence context, the resulting sentences can be a typical scenario, such as the baby spilled the wine. Four offline judgment studies were conducted to obtain quantitative measurements of the association of word pairs and of judgments of event typicality in sentences. These studies demonstrated that noun pairs showed larger differences in their association ratings than those of noun-verb pairs. When the sentences containing the word pairs were judged, the association of the noun pair strongly influenced the sentence’s event typicality ratings, regardless of word order or of the typicality of the verb. Two online, word-by-word self-paced reading studies were conducted to examine whether judgments of word associations and event typicality are used in real-time sentence processing. The results showed that there was a slowdown in reading times at the critical regions when the noun pairs were atypical. The typicality of the verb did not result in a difference in reading times, regardless of the word order of the sentences, although offline judgment scores of event typicality were predictive of online reading times. The findings of these studies suggest that: (1) event typicality is more than the semantic association between words. Noun-noun and noun-verb associations contribute to event typicality but the association of two nouns has a more significant contribution and is not affected by an intervening word, (2) the typicality of verbs contributed to real-time sentence processing, insofar as the verbs contributed to the judged typicality of the events expressed by SVO and SOV clauses, and (3) in real-time sentence processing, regardless of the sentence’s word order, the association of nouns has greater impact on event typicality processing. This is not likely to be due simply to a priming effect between nouns, but rather also reflects the processing of the sentence’s event typicality. / text
2

Processing of Grammatical Gender in French: an Individual Differences Study

Nuculaj, Meagan January 2023 (has links)
Past studies of grammatical gender have shown that native speakers encounter processing difficulties when encountering a form that does not agree in gender with previous words. However, the specific behavioral and neural responses to these difficulties have not been replicated across studies of the same type. This is in part due to different experimental designs and statistical analyses, but a crucial factor may be the lack of control between nouns of masculine and feminine gender in stimuli creation. Masculine and feminine gender show distinct distributional asymmetries and collapsing them into one condition diminishes the explanatory power of any study examining grammatical gender. We used reading times in a self-paced reading experiment to examine whether masculine and feminine gender violations differentially affect processing speeds. Fifty French speakers read sentences that were well-formed or contained a mismatch in gender between determiner and noun, half of which were masculine and half feminine. Following Beatty-Martínez et al. (2021), we added individual difference measures to determine how participant-specific factors modulate processing. Participants also completed a category verbal fluency task and the AX-CPT, a measure of cognitive control. They found that ERP components were modulated by these components for Spanish speakers and the modulation differed between masculine noun and feminine noun violations. We hypothesized that reading times would be similarly affected in French, a closely related language with the same gender categories. However, no conditions or interactions reached statistical significance. It is unclear whether this is due to the experimental manipulation or lack of control for participants’ language background, as we had a high number of bilingual and multilingual participants. Regardless, elements of the procedure may provide insight on how to design future experiments that lay a groundwork in understanding the most basic elements of gender processing. / Thesis / Master of Science (MSc) / Why is ‘pen’ masculine and ‘car’ feminine? Grammatical gender is a widespread feature of languages that comes naturally to native speakers and perplexes many second language learners. The assignment of gender seems to be random, but upon closer examination, patterns can be established. What do these differences mean for speakers of gendered languages? In the current study, we set out to determine how masculine and feminine grammatical gender is processed in French and how this is influenced by differences between individual speakers. Participants read French sentences that were either grammatical or contained a mismatch in gender between article and noun. Reading times were used to evaluate how speakers react when encountering an ungrammatical form with either masculine or feminine gender. Participants also completed tasks measuring response inhibition and verbal fluency to see how individuals with different cognitive and language skills react differently to unexpected forms.
3

The effect of context on the activation and processing of word meaning over time

Frassinelli, Diego January 2015 (has links)
The aim of this thesis is to study the effect that linguistic context exerts on the activation and processing of word meaning over time. Previous studies have demonstrated that a biasing context makes it possible to predict upcoming words. The context causes the pre-activation of expected words and facilitates their processing when they are encountered. The interaction of context and word meaning can be described in terms of feature overlap: as the context unfolds, the semantic features of the processed words are activated and words that match those features are pre-activated and thus processed more quickly when encountered. The aim of the experiments in this thesis is to test a key prediction of this account, viz., that the facilitation effect is additive and occurs together with the unfolding context. Our first contribution is to analyse the effect of an increasing amount of biasing context on the pre-activation of the meaning of a critical word. In a self-paced reading study, we investigate the amount of biasing information required to boost word processing: at least two biasing words are required to significantly reduce the time to read the critical word. In a complementary visual world experiment we study the effect of context as it unfolds over time. We identify a ceiling effect after the first biasing word: when the expected word has been pre-activated, an increasing amount of context does not produce any additional significant facilitation effect. Our second contribution is to model the activation effect observed in the previous experiments using a bag-of-words distributional semantic model. The similarity scores generated by the model significantly correlate with the association scores produced by humans. When we use point-wise multiplication to combine contextual word vectors, the model provides a computational implementation of feature overlap theory, successfully predicting reading times. Our third contribution is to analyse the effect of context on semantically similar words. In another visual world experiment, we show that words that are semantically similar generate similar eye-movements towards a related object depicted on the screen. A coherent context pre-activates the critical word and therefore increases the expectations towards it. This experiment also tested the cognitive validity of a distributional model of semantics by using this model to generate the critical words for the experimental materials used.
4

The role of working memory in comprehension of doubly embedded relative clauses: a self-paced reading and eye tracking study

Garbarino, Julianne T. January 2013 (has links)
Language processing has been a focus of working memory research since Baddeley introduced his Model of Working Memory in the 1970’s. There has been continued discussion over whether the same working memory (WM) system that underlies verbally-mediated tasks relying on conscious, controlled, processing also provides the resources used in language processing. Recently, Caplan, DeDe, Waters, & Michaud (2011) found that increased reading times at only the most difficult point of the most difficult sentences presented in their study (sentences with doubly embedded relative clauses) correlated with improved comprehension. They hypothesized that this correlation occurs because at these points where normal parsing fails, individuals with high working memory capacities use ancillary comprehension mechanisms that rely on verbal working memory. Caplan and Waters (2013) proposed that use of verbal working memory for ancillary comprehension in sentence processing may appear behaviorally as improved comprehension with longer reading times in self-paced reading tasks and as regressive eye movements out of these points where parsing is thought to fail. This thesis attempted to replicate the above mentioned finding of Caplan et al. (2011). This study also added an eyetracking task to enable measurement of regressive eye movements and a measure of working memory to permit analysis of individual differences. Forty-eight healthy adults completed a working memory battery (alphabet span, subtract two span, and sentence span), a self-paced reading task, and an eye-tracking task. For the self-paced reading and eye tracking components, participants read sentences with doubly embedded relative clauses and parallel sentences with sentential complements. Linear mixed effects models found increased self-paced reading times and go-past times at the hardest point in the harder sentences (those with doubly embedded relative clauses) as working memory increased. These results support the hypothesis that ancillary comprehension mechanisms are used in sentence processing at points where comprehension is extremely difficult. In the attempted replication of the findings of Caplan et al. (2011), logistic mixed effects models showed increased accuracy as reading times increased at the hardest point in the harder sentences, and also as reading times increased at five of the other seven segments. Logistic mixed effects models showed no significant increase in regressions out of the hardest point in harder than in the easier sentences as working memory increased. These results can be taken as further evidence, using eye tracking methods combined with self-paced reading and measurement of working memory, that ancillary comprehension mechanisms may be used in sentence processing when the limits of the normal parser are exceeded.
5

Backwards and forwards: Behavioral and neurophysiological investigations into dependency processing

Witzel, Jeffrey D. January 2010 (has links)
This dissertation examines the processing of sentences involving long-distance linguistic dependencies, or sentences containing elements that must be linked across intervening words and phrases. Specifically, both behavioral (self-paced reading and eye tracking) and neurophysiological (electroencephalography) methods were used (a) to evaluate the relative importance of backward- and forward-looking dependency satisfaction processes in the comprehension of sentences involving wh-dependencies and (b) to determine the extent to which common neurocognitive mechanisms are involved the processing of wh- and anaphoric dependencies. With respect to the first issue, both behavioral andneurophysiological results indicated a core role for forward-looking, expectancy-based processes in the comprehension of wh-dependency sentences. Regarding the latter issue, despite considerable overlap in the reading patterns associated with wh-dependencies and (at least some types of) anaphora, the neurophysiological responses related to these dependency types indicated that their processing draws on distinct neurocognitive mechanisms.
6

Concurrent Memory Load, Working Memory Span, and Morphological Processing in L1 and L2 English

Dronjic, Vedran 08 January 2014 (has links)
This study utilized the moving-window self-paced reading paradigm to investigate the processing of English morphemes by native speakers of English, Chinese, and Korean. The morphemes belonged to three distinct theoretical types: Stratum 1 derivation ({-ALADJ}, {-ITY}, and {-OUSADJ}), Stratum 2 derivation ({-NESS}, {-FULADJ}, and {-ERAGENT}), and inflection ({-SPL}, {-EDPAST}, and {-S3RDSGPRES}). Participants were presented with either (1) fully grammatical sentences which contained words featuring these morphemes or (2) ungrammatical sentences in which one word form lacked one of the morphemes when it was obligatory (e.g., Canada is one of the most *prosper and developed countries in the world). Half the sentences were presented with a concurrent working memory load, which consisted of remembering the result of a simple calculation (e.g., subtracting 3 from 95) while processing a sentence and reporting the number immediately thereafter. Reading times for the target word and the three words immediately following it were used as the main dependent variable. The background measures included a C-Test of English proficiency, a reading span task, a digits-forward task, a digits-backward task, and a detailed background questionnaire. In agreement with previous research, it was found that morphological violations tended to cause slowdowns in processing. Conversely, the presence of a concurrent memory load tended to cause speedups. Native speakers differed from non-native speakers by: (1) showing an early sensitivity to violations of Stratum 2 derivational morphology; (2) exhibiting a delayed response to violations of Stratum 1 derivation; and (3) not slowing down after violations of inflectional morphology. In addition, native speakers were the only group exhibiting no relationship between morphological processing on one side and short term-memory, working memory, and C-Test scores on the other. Overall, the similarity between native and non-native speakers was the greatest in the processing of Stratum 1 derivation. Crucially, the temporal pattern of the Korean participants’ responses to morphological violations in English placed them in an intermediate position between the English and Chinese native speakers, which was interpreted as evidence of L1 – L2 transfer in morphological processing. Notably, this transfer occurred between an agglutinative L1 and an unrelated mixed-type L2.
7

Concurrent Memory Load, Working Memory Span, and Morphological Processing in L1 and L2 English

Dronjic, Vedran 08 January 2014 (has links)
This study utilized the moving-window self-paced reading paradigm to investigate the processing of English morphemes by native speakers of English, Chinese, and Korean. The morphemes belonged to three distinct theoretical types: Stratum 1 derivation ({-ALADJ}, {-ITY}, and {-OUSADJ}), Stratum 2 derivation ({-NESS}, {-FULADJ}, and {-ERAGENT}), and inflection ({-SPL}, {-EDPAST}, and {-S3RDSGPRES}). Participants were presented with either (1) fully grammatical sentences which contained words featuring these morphemes or (2) ungrammatical sentences in which one word form lacked one of the morphemes when it was obligatory (e.g., Canada is one of the most *prosper and developed countries in the world). Half the sentences were presented with a concurrent working memory load, which consisted of remembering the result of a simple calculation (e.g., subtracting 3 from 95) while processing a sentence and reporting the number immediately thereafter. Reading times for the target word and the three words immediately following it were used as the main dependent variable. The background measures included a C-Test of English proficiency, a reading span task, a digits-forward task, a digits-backward task, and a detailed background questionnaire. In agreement with previous research, it was found that morphological violations tended to cause slowdowns in processing. Conversely, the presence of a concurrent memory load tended to cause speedups. Native speakers differed from non-native speakers by: (1) showing an early sensitivity to violations of Stratum 2 derivational morphology; (2) exhibiting a delayed response to violations of Stratum 1 derivation; and (3) not slowing down after violations of inflectional morphology. In addition, native speakers were the only group exhibiting no relationship between morphological processing on one side and short term-memory, working memory, and C-Test scores on the other. Overall, the similarity between native and non-native speakers was the greatest in the processing of Stratum 1 derivation. Crucially, the temporal pattern of the Korean participants’ responses to morphological violations in English placed them in an intermediate position between the English and Chinese native speakers, which was interpreted as evidence of L1 – L2 transfer in morphological processing. Notably, this transfer occurred between an agglutinative L1 and an unrelated mixed-type L2.
8

Temporal Adverbial Clause Positioning and Dyslexia

January 2020 (has links)
abstract: Temporal adverbial clauses are present in many forms of writing. These clauses can impact the complexity of a sentence. Sentence complexity can have some effect on how readers with a diagnosed reading disability, such as dyslexia, process language. This study incorporated Hawkins’ (1994) theories about Early Immediate Constituency into a self-paced reading task designed to evaluate whether or not temporal adverbial clause positioning caused the main clause of the sentence to become more difficult to understand. Hawkins theorized that main clauses appearing at the beginning of a sentence would create an environment where a reader could reach sentence comprehension faster (CITE). The experiment used software called Linger to present the self-paced reading task. Eight participants – four with dyslexia and four without – volunteered to read sentence items from a college level textbook that had temporal adverbial clauses appearing before and after the main clause of sentences. Statistical significance in the findings show that participants read sentences more quickly when the temporal adverbial clause appeared before the main clause; however, more research is required to determine the difference between sentences fronted by adverbial clauses and sentences fronted by main clauses. / Dissertation/Thesis / Masters Thesis Linguistics and Applied Linguistics 2020
9

Is A-movement a movement? An eye-tracking and self-paced reading investigation

Hudson, Tess January 2020 (has links)
In this thesis, I investigate the link between A-movement and online processing in eye-tracking and self-paced reading (SPR). A-movement refers to movement of an element to an argument position, where an element may be base-generated and hold a semantic role of the main predicate of the clause. I analyze six constructions in English, divided into three experimental pairings. Unaccusative constructions argued to involve movement are contrasted with unergatives as control, in a purely intransitive pairing. Transitive verb expectations are controlled by contrasting optional transitive constructions and purported movement in inchoative constructions. Argument alternation is taken into consideration in comparing instrumental constructions and possible movement in middle constructions. The results from the SPR experiment did not show significant differences in reading times or fixation durations between pairings in any regions. In the eye-tracking results, no significant effects were found at the verb region, where the syntactic complexity of movement could lead to greater processing effort. In the subject noun region of the optional transitive and inchoative constructions and instrumental and middle constructions, significant differences in gaze duration, total fixation duration, and go-past time were found. These results are compatible with theories of frequency effects. Differences at the adverb could support lexical or derivational approaches, as controls and experimental conditions had equal length fixations in our first pairing, controls had longer fixations in our second pairing, and experimental items had longer fixations in our third pairing. Ultimately, the results do not offer strong support for the derivational approach, and are not accounted for through a lexical approach. / Thesis / Master of Science (MSc)
10

<b>FACILITATING SENTENCE PROCESSING IN APHASIA: EVIDENCE FROM SELF-PACED READING</b>

Grace Hoi-Yan Man (17565099) 07 December 2023 (has links)
<p dir="ltr">It is well known that persons with aphasia (PWA) demonstrate deficits in sentence processing. Specifically, many show difficulties with syntactic re-analysis, or the ability to revise one’s interpretation of a sentence due to a temporary ambiguity. Emerging evidence suggests that structural priming, individuals’ tendency to unconsciously re-use a previously encountered structure, can facilitate production and comprehension of different sentence structures in PWA. However, there are inconsistencies within the literature regarding the robustness of priming across different sentence structures and tasks, and the existing findings are limited to off-line measures which do not capture real-time sentence processing. Furthermore, a range of individual variability has been shown in magnitudes of priming effects.</p><p dir="ltr">This current project addressed these critical gaps by investigating the effects of structural priming on comprehension of sentences with reduced relative (RR) clauses. Study 1 examined whether PWA show immediate structural priming and longer-term cumulative priming in a computerized self-paced reading paradigm. In this study, participants read RR target sentences that were preceded by prime sentences with either an RR or a main clause (MC) interpretation. Study 2 examined if and how individuals’ cognitive (memory) skills account for individual variability shown in structural priming. Participants completed a Serial Reaction Time task as a measure of implicit memory, and the Verbal Paired Associates I task as a measure of explicit memory. Eighteen healthy adults (HA) and 18 PWA participated in both studies.</p><p dir="ltr">In Study 1, PWA demonstrated robust and timely immediate structural priming effect, providing novel evidence that structural priming can be captured in real-time using self-paced reading, and that priming can help ameliorate syntactic re-analysis deficits in PWA. However, these online changes were not reflected in the behavioral measures, highlighting the sensitivity of self-paced reading in detecting the dissociation between automatic, real-time processing and overt behavioral responses. Cumulative priming as traditionally defined was also not significant for either group, although participants became faster at reading RR target sentences as the session progressed. Study 2’s findings suggest that implicit memory may be an important cognitive skill to promote sentence processing, whereas having strong explicit memory may not be facilitative of the learning process.</p>

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