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  What does "being an expert" mean to the brain? Functional specificity and connectivity in expertise

Jeon, H.-A., & Friederici, A. D. (2017). What does "being an expert" mean to the brain? Functional specificity and connectivity in expertise. Cerebral Cortex, 27(12), 5603-5615. doi:10.1093/cercor/bhw329.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-9FC9-B Version Permalink: http://hdl.handle.net/21.11116/0000-0005-52EA-7
Genre: Journal Article

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 Creators:
Jeon, Hyeon-Ae1, 2, Author              
Friederici, Angela D.2, Author              
Affiliations:
1Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science and Technology, Daegu, Republic of Korea, ou_persistent22              
2Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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Free keywords: Expertise; Functional connectivity; Functional specificity; Hierarchy; Mathematics
 Abstract: To what extent is varying cognitive expertise reflected in the brain's functional specificity and connectivity? We addressed this question by examining expertise in mathematics based on the fact that mathematical skills are one of the most critical cognitive abilities known to be a good predictor of academic achievement. We investigated processing of hierarchical structures, which is a fundamental process for building complex cognitive architecture. Experts and nonexperts in mathematics participated in processing hierarchical structures using algebraic expressions. Results showed that a modulating effect depending on expertise was observed specifically in nonexperts in the left inferior frontal gyrus around pars triangularis and frontal sulcus, the left intraparietal sulcus, and the right inferior parietal lobule. This expertise-dependent pattern of activation led to a crucial dissociation within the left prefrontal cortex. More interestingly, task-related functional networks were also modulated differently in the frontoparietal network for relatively good performance and in the frontostriatal network for poor performance. The present study indicates that a high level of expertise is evident in a small number of specific brain regions, whereas a low level of expertise is reflected by broadly distributed brain areas, along with divergent functional connectivity between experts and nonexperts.

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Language(s): eng - English
 Dates: 2016-09-062016-05-1620162016-10-252017-12-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1093/cercor/bhw329
PMID: 27797834
 Degree: -

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Title: Cerebral Cortex
Source Genre: Journal
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Publ. Info: New York, NY : Oxford University Press
Pages: - Volume / Issue: 27 (12) Sequence Number: - Start / End Page: 5603 - 5615 Identifier: ISSN: 1047-3211
CoNE: https://pure.mpg.de/cone/journals/resource/954925592440