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Continuous Theta-Burst Stimulation on the Left Posterior Inferior Frontal Gyrus Perturbs Complex Syntactic Processing Stability in Mandarin Chinese.
Wu, Junjie; Cheng, Yao; Qu, Xingfang; Kang, Tianmin; Cai, Yimin; Wang, Peng; Zaccarella, Emiliano; Friederici, Angela D; Hartwigsen, Gesa; Chen, Luyao.
Afiliación
  • Wu J; Key Research Base of Humanities and Social Sciences of the Ministry of Education, Academy of Psychology and Behavior, Tianjin Normal University, Tianjin, China.
  • Cheng Y; Max Planck Partner Group, School of International Chinese Language Education, Beijing Normal University, Beijing, China.
  • Qu X; Max Planck Partner Group, School of International Chinese Language Education, Beijing Normal University, Beijing, China.
  • Kang T; Department of Psychology, Skidmore College, Saratoga Springs, NY, USA.
  • Cai Y; Max Planck Partner Group, School of International Chinese Language Education, Beijing Normal University, Beijing, China.
  • Wang P; Institute of Psychology, University of Regensburg, Regensburg, Germany.
  • Zaccarella E; Institute of Psychology, University of Greifswald, Greifswald, Germany.
  • Friederici AD; Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
  • Hartwigsen G; Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
  • Chen L; Lise Meitner Research Group Cognition and Plasticity, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
Neurobiol Lang (Camb) ; 5(2): 608-627, 2024.
Article en En | MEDLINE | ID: mdl-38939729
ABSTRACT
The structure of human language is inherently hierarchical. The left posterior inferior frontal gyrus (LpIFG) is proposed to be a core region for constructing syntactic hierarchies. However, it remains unclear whether LpIFG plays a causal role in syntactic processing in Mandarin Chinese and whether its contribution depends on syntactic complexity, working memory, or both. We addressed these questions by applying inhibitory continuous theta-burst stimulation (cTBS) over LpIFG. Thirty-two participants processed sentences containing embedded relative clauses (i.e., complex syntactic processing), syntactically simpler coordinated sentences (i.e., simple syntactic processing), and non-hierarchical word lists (i.e., word list processing) after receiving real or sham cTBS. We found that cTBS significantly increased the coefficient of variation, a representative index of processing stability, in complex syntactic processing (esp., when subject relative clause was embedded) but not in the other two conditions. No significant changes in d' and reaction time were detected in these conditions. The findings suggest that (a) inhibitory effect of cTBS on the LpIFG might be prominent in perturbing the complex syntactic processing stability but subtle in altering the processing quality; and (b) the causal role of the LpIFG seems to be specific for syntactic processing rather than working memory capacity, further evidencing their separability in LpIFG. Collectively, these results support the notion of the LpIFG as a core region for complex syntactic processing across languages.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Neurobiol Lang (Camb) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Neurobiol Lang (Camb) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos