Transition From Sublexical to Lexico-Semantic Stimulus Processing

Resembling letter-by-letter translation, Morse code can be used to investigate various linguistic components by slowing down the cognitive process of language decoding. Using fMRI and Morse code, we investigated patterns of brain activation associated with decoding three-letter words or non-words an...

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Main Authors: Frederick Benjamin Junker, Lara Schlaffke, Christian Bellebaum, Marta Ghio, Stefanie Brühl, Nikolai Axmacher, Tobias Schmidt-Wilcke
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-10-01
Series:Frontiers in Systems Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnsys.2020.522384/full
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author Frederick Benjamin Junker
Frederick Benjamin Junker
Lara Schlaffke
Christian Bellebaum
Marta Ghio
Stefanie Brühl
Stefanie Brühl
Stefanie Brühl
Nikolai Axmacher
Tobias Schmidt-Wilcke
Tobias Schmidt-Wilcke
author_facet Frederick Benjamin Junker
Frederick Benjamin Junker
Lara Schlaffke
Christian Bellebaum
Marta Ghio
Stefanie Brühl
Stefanie Brühl
Stefanie Brühl
Nikolai Axmacher
Tobias Schmidt-Wilcke
Tobias Schmidt-Wilcke
author_sort Frederick Benjamin Junker
collection DOAJ
description Resembling letter-by-letter translation, Morse code can be used to investigate various linguistic components by slowing down the cognitive process of language decoding. Using fMRI and Morse code, we investigated patterns of brain activation associated with decoding three-letter words or non-words and making a lexical decision. Our data suggest that early sublexical processing is associated with activation in brain regions that are involved in sound-patterns to phoneme conversion (inferior parietal lobule), phonological output buffer (inferior frontal cortex: pars opercularis) as well as phonological and semantic top-down predictions (inferior frontal cortex: pars triangularis). In addition, later lexico-semantic processing of meaningful stimuli is associated with activation of the phonological lexicon (angular gyrus) and the semantic system (default mode network). Overall, our data indicate that sublexical and lexico-semantic analyses comprise two cognitive processes that rely on neighboring networks in the left frontal cortex and parietal lobule.
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spelling doaj.art-b11650f15f3f44e4b981c7b59a8fe59b2022-12-22T00:59:03ZengFrontiers Media S.A.Frontiers in Systems Neuroscience1662-51372020-10-011410.3389/fnsys.2020.522384522384Transition From Sublexical to Lexico-Semantic Stimulus ProcessingFrederick Benjamin Junker0Frederick Benjamin Junker1Lara Schlaffke2Christian Bellebaum3Marta Ghio4Stefanie Brühl5Stefanie Brühl6Stefanie Brühl7Nikolai Axmacher8Tobias Schmidt-Wilcke9Tobias Schmidt-Wilcke10Department of Neuropsychology, Ruhr-University Bochum, Bochum, GermanyDepartment of Clinical Neuroscience and Medical Psychology, Heinrich Heine University, Düsseldorf, GermanyDepartment for Neurology, Professional Association Berufsgenossenschaft-University Hospital Bergmannsheil, Bochum, GermanyInstitute of Experimental Psychology, Heinrich Heine University, Düsseldorf, GermanyInstitute of Experimental Psychology, Heinrich Heine University, Düsseldorf, GermanySt. Mauritius Therapy Clinic, Meerbusch, GermanyDepartment of Neurology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, GermanyDivision of Neuroscience and Experimental Psychology, University of Manchester, Manchester, United KingdomDepartment of Neuropsychology, Ruhr-University Bochum, Bochum, GermanyDepartment of Clinical Neuroscience and Medical Psychology, Heinrich Heine University, Düsseldorf, GermanySt. Mauritius Therapy Clinic, Meerbusch, GermanyResembling letter-by-letter translation, Morse code can be used to investigate various linguistic components by slowing down the cognitive process of language decoding. Using fMRI and Morse code, we investigated patterns of brain activation associated with decoding three-letter words or non-words and making a lexical decision. Our data suggest that early sublexical processing is associated with activation in brain regions that are involved in sound-patterns to phoneme conversion (inferior parietal lobule), phonological output buffer (inferior frontal cortex: pars opercularis) as well as phonological and semantic top-down predictions (inferior frontal cortex: pars triangularis). In addition, later lexico-semantic processing of meaningful stimuli is associated with activation of the phonological lexicon (angular gyrus) and the semantic system (default mode network). Overall, our data indicate that sublexical and lexico-semantic analyses comprise two cognitive processes that rely on neighboring networks in the left frontal cortex and parietal lobule.https://www.frontiersin.org/articles/10.3389/fnsys.2020.522384/fullsublexical processinglexico-semantic processingphonological lexiconsemantic systemlexicalitydefault mode network
spellingShingle Frederick Benjamin Junker
Frederick Benjamin Junker
Lara Schlaffke
Christian Bellebaum
Marta Ghio
Stefanie Brühl
Stefanie Brühl
Stefanie Brühl
Nikolai Axmacher
Tobias Schmidt-Wilcke
Tobias Schmidt-Wilcke
Transition From Sublexical to Lexico-Semantic Stimulus Processing
Frontiers in Systems Neuroscience
sublexical processing
lexico-semantic processing
phonological lexicon
semantic system
lexicality
default mode network
title Transition From Sublexical to Lexico-Semantic Stimulus Processing
title_full Transition From Sublexical to Lexico-Semantic Stimulus Processing
title_fullStr Transition From Sublexical to Lexico-Semantic Stimulus Processing
title_full_unstemmed Transition From Sublexical to Lexico-Semantic Stimulus Processing
title_short Transition From Sublexical to Lexico-Semantic Stimulus Processing
title_sort transition from sublexical to lexico semantic stimulus processing
topic sublexical processing
lexico-semantic processing
phonological lexicon
semantic system
lexicality
default mode network
url https://www.frontiersin.org/articles/10.3389/fnsys.2020.522384/full
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