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  Neural dynamics of accumulating and updating linguistic knowledge structures

Berkers, R., van der Linden, M., Neville, D. A., van Kesteren, M. T. R., Morris, R. G. M., Murre, J. M. J., et al. (2018). Neural dynamics of accumulating and updating linguistic knowledge structures. bioRxiv. doi:10.1101/495168.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-D48C-F Version Permalink: http://hdl.handle.net/21.11116/0000-0004-DB7F-8
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Berkers_vanderLinden_2018.pdf (Preprint), 4MB
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Neural dynamics of accumulating and updating linguistic knowledge structures
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Berkers, Ruud1, 2, Author              
van der Linden, Marieke2, Author
Neville, David A.2, Author
van Kesteren, Marlieke T. R. 2, Author
Morris, Richard G. M.3, Author
Murre, Jaap M. J.4, Author
Fernandez, Guillen2, Author
Affiliations:
1Max Planck Research Group Adaptive Memory, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2295691              
2Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands, ou_persistent22              
3Centre for Cognitive and Neural Systems, University of Edinburgh, United Kingdom, ou_persistent22              
4Department of Psychology, University of Amsterdam, the Netherlands, ou_persistent22              

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 Abstract: Knowledge is acquired by generalization and integration across learning experiences, which can then be applied to future instances. This study provides novel insights into how linguistic associative knowledge is acquired by systematically tracking schematic knowledge formation while participants were learning an abstract artificial language organized by higher-order associative regularity. During learning, we found activity in the left inferior frontal gyrus in response to knowledge updating during feedback presentation, as well as in response to available accumulated knowledge during retrieval. A complementary signal was found in the caudate nucleus, where activity correlated with the availability of recently acquired knowledge during retrieval, suggesting it initially supports the retrieval of knowledge. Furthermore, we find that activity in a set of regions, including the medial prefrontal cortex and hippocampus, scaled with accumulated knowledge during feedback presentation, which might be indicative of increased generalization of features of the hierarchical knowledge structure. Together, these results provide a mechanistic insight into how linguistic associative knowledge is acquired by generalization across repeated learning experiences.

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Language(s): eng - English
 Dates: 2018-12-20
 Publication Status: Published online
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 Rev. Type: No review
 Identifiers: DOI: 10.1101/495168
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Title: bioRxiv
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