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Functional brain plasticity during L1 training on complex sentences: Changes in gamma‐band oscillatory activity
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In: Hum Brain Mapp (2021)
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Abstract:
The adult human brain remains plastic even after puberty. However, whether first language (L1) training in adults can alter the language network is yet largely unknown. Thus, we conducted a longitudinal training experiment on syntactically complex German sentence comprehension. Sentence complexity was varied by the depth of the center embedded relative clauses (i.e., single or double embedded). Comprehension was tested after each sentence with a question on the thematic role assignment. Thirty adult, native German speakers were recruited for 4 days of training. Magnetoencephalography (MEG) data were recorded and subjected to spectral power analysis covering the classical frequency bands (i.e., theta, alpha, beta, low gamma, and gamma). Normalized spectral power, time‐locked to the final closure of the relative clause, was subjected to a two‐factor analysis (“sentence complexity” and “training days”). Results showed that for the more complex sentences, the interaction of sentence complexity and training days was observed in Brodmann area 44 (BA 44) as a decrease of gamma power with training. Moreover, in the gamma band (55–95 Hz) functional connectivity between BA 44 and other brain regions such as the inferior frontal sulcus and the inferior parietal cortex were correlated with behavioral performance increase due to training. These results show that even for native speakers, complex L1 sentence training improves language performance and alters neural activities of the left hemispheric language network. Training strengthens the use of the dorsal processing stream with working‐memory‐related brain regions for syntactically complex sentences, thereby demonstrating the brain's functional plasticity for L1 training.
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Keyword:
Research Articles
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8288093/ http://www.ncbi.nlm.nih.gov/pubmed/33942956 https://doi.org/10.1002/hbm.25470
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Young children’s sentence comprehension: Neural correlates of syntax-semantic competition
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Processing role-ambiguous sentences in German: An ERP study in 7-8 year old children ...
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Processing role-ambiguous sentences in German: An ERP study in 7-8 year old children ...
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Dyslexia risk gene relates to representation of sound in the auditory brainstem
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Dyslexia risk gene relates to representation of sound in the auditory brainstem
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ATP2C2 and DYX1C1 are putative modulators of dyslexia-related MMR
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Preschoolers' brains rely on semantic cues prior to the mastery of syntax during sentence comprehension
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Development of a selective left-hemispheric fronto-temporal network for processing syntactic complexity in language comprehension
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Longitudinal changes in resting-state fMRI from age 5 to age 6 years covary with language development
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Genetic dyslexia risk variant is related to neural connectivity patterns underlying phonological awareness in children
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Neuroanatomical Prerequisites for Language Functions in the Maturing Brain
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Maturation of the Language Network: From Inter- to Intrahemispheric Connectivities
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Setting the Frame: The Human Brain Activates a Basic Low-Frequency Network for Language Processing
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Neuroanatomical Prerequisites for Language Functions in the Maturing Brain
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