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Neural Dynamics of Processing Inflectional Morphology: An fMRI Study on Korean Inflected Verbs.
Brain Sci
July 2024
Department of Psychology, Korea University, Seoul 02841, Republic of Korea.
The present study aimed to elucidate the neural mechanisms underpinning the visual recognition of morphologically complex verbs in Korean, a morphologically rich, agglutinative language with inherent polymorphemic characteristics. In an fMRI experiment with a lexical decision paradigm, we investigated whether verb inflection types (base, regular, and irregular) are processed through separate mechanisms or a single system. Furthermore, we explored the semantic influence in processing inflectional morphology by manipulating the semantic ambiguity (homonymous vs.
View Article and Find Full Text PDFBELHD: improving biomedical entity linking with homonym disambiguation.
Bioinformatics
August 2024
Computer Science, Humboldt-Universität zu Berlin, Berlin 12489, Germany.
Motivation: Biomedical entity linking (BEL) is the task of grounding entity mentions to a given knowledge base (KB). Recently, neural name-based methods, system identifying the most appropriate name in the KB for a given mention using neural network (either via dense retrieval or autoregressive modeling), achieved remarkable results for the task, without requiring manual tuning or definition of domain/entity-specific rules. However, as name-based methods directly return KB names, they cannot cope with homonyms, i.
View Article and Find Full Text PDFThe time course of semantic ambiguity in visual word recognition: behavioral and ERP evidence for the lexical-semantic effect.
Front Psychol
July 2024
School of Psychology, Korea University, Seoul, Republic of Korea.
Introduction: Homonyms are words with multiple, unrelated meanings that share a single form and pronunciation. These words provide valuable insights into how semantic representation is retrieved and selected independently of orthography and phonology. This study aims to investigate the temporal dynamics of lexical and semantic processing in the visual recognition of Korean words.
View Article and Find Full Text PDFBrain representations of lexical ambiguity: Disentangling homonymy, polysemy, and their meanings.
Brain Lang
June 2024
Center for Brain Disorders and Cognitive Sciences, School of Psychology, Shenzhen University, Shenzhen 518060, China. Electronic address:
Article Synopsis
- This study investigated how the brain processes words with multiple meanings, focusing on homonyms (words with unrelated meanings) and polysemy (words with related meanings).
- Using fMRI, researchers found that homonyms activated specific brain areas related to cognitive control more than polysemous words.
- The study also indicated that different syntactic categories of homonyms were represented uniquely in the brain's frontal and temporal regions, emphasizing the role of semantics and grammar in understanding ambiguous words.
An event-related potential investigation of the influence of bilingualism on disambiguating homonyms in older adults.
Can J Exp Psychol
June 2024
School of Psychology, University of Ottawa.
Ambiguity is ubiquitous in language; lexical ambiguity refers to instances where a single word has multiple meanings. The current investigation examined homonyms, words that have the same orthography and pronunciation in English but multiple meanings (e.g.
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