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Social and emotion dimensional organizations in the abstract semantic space: the neuropsychological evidence
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In: Sci Rep (2021)
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Representational similarity analysis reveals task-dependent semantic influence of the visual word form area
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Abstract:
Access to semantic information of visual word forms is a key component of reading comprehension. In this study, we examined the involvement of the visual word form area (VWFA) in this process by investigating whether and how the activity patterns of the VWFA are influenced by semantic information during semantic tasks. We asked participants to perform two semantic tasks - taxonomic or thematic categorization - on visual words while obtaining the blood-oxygen-level-dependent (BOLD) fMRI responses to each word. Representational similarity analysis with four types of semantic relations (taxonomic, thematic, subjective semantic rating and word2vec) revealed that neural activity patterns of the VWFA were associated with taxonomic information only in the taxonomic task, with thematic information only in the thematic task and with the composite semantic information measured by word2vec in both semantic tasks. Furthermore, the semantic information in the VWFA cannot be explained by confounding factors including orthographic, low-level visual and phonological information. These findings provide positive evidence for the presence of both orthographic and task-relevant semantic information in the VWFA and have significant implications for the neurobiological basis of reading.
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Keyword:
Article
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URL: http://www.ncbi.nlm.nih.gov/pubmed/29445098 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5813029/ https://doi.org/10.1038/s41598-018-21062-0
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Doctor, Teacher, and Stethoscope: Neural Representation of Different Types of Semantic Relations
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Neural representation of visual concepts in people born blind
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Domain Selectivity in the Parahippocampal Gyrus Is Predicted by the Same Structural Connectivity Patterns in Blind and Sighted Individuals
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The Left Fusiform Gyrus is a Critical Region Contributing to the Core Behavioral Profile of Semantic Dementia
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Areas Recruited during Action Understanding Are Not Modulated by Auditory or Sign Language Experience
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Reading Without Speech Sounds: VWFA and its Connectivity in the Congenitally Deaf
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Altered connectivity of the dorsal and ventral visual regions in dyslexic children: a resting-state fMRI study
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An fMRI Study of Grammatical Morpheme Processing Associated with Nouns and Verbs in Chinese
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Resting-State Functional Connectivity Patterns Predict Chinese Word Reading Competency
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