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You searched for subject:(semantic feature norms). Showing records 1 – 2 of 2 total matches.

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University of Western Ontario

1. Matsuki, Eriko. Conceptual Representation in Bilinguals: A Feature-Based Approach.

Degree: 2018, University of Western Ontario

A challenge for bilinguals is that translation equivalent words often do not convey exactly the same conceptual information. A bilingual exhibits a “semantic accent” when they comprehend or use a word in one language in a way that is influenced by knowledge of its translation equivalent. Semantic accents are well-captured by feature-based models, such as the Distributed Conceptual Feature model and the Shared (Distributed) Asymmetrical model, however, few empirical studies have used semantic features to provide direct evidence for these models. The goal of this thesis is to use a feature-based approach to identify conceptual differences in translation equivalent words and to investigate how word meanings are activated in sequential Japanese-English bilinguals in their L1 and L2. In Chapter 2, I collected feature norms from Canadian English speakers and Japanese speakers for translation equivalent words to identify whether conceptual differences can be detected from a feature production task. Based on a cross-language comparison of the two feature norms, differences were identified in both global (i.e., the overall proportion of production frequency for different knowledge type) and individual feature levels (i.e., language-specific features). These findings suggest that a feature-based approach is useful to identify conceptual differences in translation equivalent words. In Chapter 3, I used language-specific semantic features (e.g., “is yellow” for the word BUS) to investigate whether language-specific conceptual information is activated differently (1) between bilinguals and monolinguals, (2) depending on the task of the language (L1 vs L2) within bilinguals, and (3) depending on bilinguals’ individual differences including L2 proficiency and the extent of L2 cultural immersion. Both explicit and implicit behavioural tasks were used to explore how bilinguals access language-specific conceptual information when they are processing words in their L1 and L2. The comparison between bilinguals and monolinguals revealed that bilinguals exhibit semantic accents in both of their L1 and L2. The comparison between L1 and L2 tasks within bilinguals revealed that language-specific features were activated at different strengths depending on the language of the task. Finally, the results suggest that the nature of accents depended more on the extent of L2 cultural immersion rather than L2 proficiency.

Subjects/Keywords: bilingualism; language; semantic features; semantic feature norms; conceptual representation; cultural immersion; Cognitive Psychology; Psycholinguistics and Neurolinguistics; Psychology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Matsuki, E. (2018). Conceptual Representation in Bilinguals: A Feature-Based Approach. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/5899

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Matsuki, Eriko. “Conceptual Representation in Bilinguals: A Feature-Based Approach.” 2018. Thesis, University of Western Ontario. Accessed January 23, 2019. https://ir.lib.uwo.ca/etd/5899.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Matsuki, Eriko. “Conceptual Representation in Bilinguals: A Feature-Based Approach.” 2018. Web. 23 Jan 2019.

Vancouver:

Matsuki E. Conceptual Representation in Bilinguals: A Feature-Based Approach. [Internet] [Thesis]. University of Western Ontario; 2018. [cited 2019 Jan 23]. Available from: https://ir.lib.uwo.ca/etd/5899.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Matsuki E. Conceptual Representation in Bilinguals: A Feature-Based Approach. [Thesis]. University of Western Ontario; 2018. Available from: https://ir.lib.uwo.ca/etd/5899

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


University of Western Ontario

2. Duke, Devin. The Neural and Cognitive Basis of Cumulative Lifetime Familiarity Assessment.

Degree: 2016, University of Western Ontario

Perirhinal cortex (PrC) has been implicated as a brain region in the medial temporal lobes (MTL) that critically contributes to familiarity-based recognition memory, a process that allows for recognition to occur independently of contextual recollection. Informed by neurophysiological research in non-human primates, fMRI, as well as behavioural work in humans, the current thesis research tests the novel hypothesis that PrC cortex functioning also underlies the ability to assess cumulative lifetime familiarity with object concepts that are characterized by a lifetime of experiences. In Chapter 2, a patient (NB) with a left anterior temporal lobe (ATL) lesion that included PrC as well as an amnesic patient (HC) with a bilateral lesion to the hippocampus were tested on their ability to make lifetime familiarity judgements for object concepts (i.e., concrete nouns). Patient NB made abnormal familiarity ratings for objects concepts relative to matched controls, while patient HC produced ratings that did not differ from control participants. In Chapter 3, I tested healthy young adults on a frequency judgement task and lifetime familiarity task while they underwent fMRI. A region in the left PrC tracked both the perceived frequency of recent laboratory exposure as well as perceived lifetime familiarity. Finally, in Chapter 4, I tested whether indeed lifetime familiarity judgements are based on conceptual processing by making use of an associative priming paradigm. Associatively-related primes increased the perceived familiarity of object concepts while also reducing the latency of these judgements. Overall, the results from all three empirical chapters provides evidence that warrants an extension of PrC functioning to include the cumulative assessment of lifetime familiarity with object concepts.

Subjects/Keywords: Recognition Memory; Familiarity; Recollection; Item Recognition; Perirhinal Cortex; Hippocampus Semantic Memory; Lifetime Familiarity; fMRI; Associative Priming; Feature Norms; Cognitive Neuroscience; Cognitive Psychology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Duke, D. (2016). The Neural and Cognitive Basis of Cumulative Lifetime Familiarity Assessment. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/3756

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Duke, Devin. “The Neural and Cognitive Basis of Cumulative Lifetime Familiarity Assessment.” 2016. Thesis, University of Western Ontario. Accessed January 23, 2019. https://ir.lib.uwo.ca/etd/3756.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Duke, Devin. “The Neural and Cognitive Basis of Cumulative Lifetime Familiarity Assessment.” 2016. Web. 23 Jan 2019.

Vancouver:

Duke D. The Neural and Cognitive Basis of Cumulative Lifetime Familiarity Assessment. [Internet] [Thesis]. University of Western Ontario; 2016. [cited 2019 Jan 23]. Available from: https://ir.lib.uwo.ca/etd/3756.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Duke D. The Neural and Cognitive Basis of Cumulative Lifetime Familiarity Assessment. [Thesis]. University of Western Ontario; 2016. Available from: https://ir.lib.uwo.ca/etd/3756

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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