Effects of theta burst stimulation over the dorsolateral prefrontal cortex on language switching – A behavioral and ERP study
- Pestalozzi, Maria I. Neurology Unit, Medicine Section, Department of Neuroscience and Movement Science, Faculty of Science and Medicine, University of Fribourg, CH-1700 Fribourg, Switzerland
- Annoni, Jean-Marie Neurology Unit, Medicine Section, Department of Neuroscience and Movement Science, Faculty of Science and Medicine, University of Fribourg, CH-1700 Fribourg, Switzerland
- Müri, René M. Department of Neurology, University Neurorehabilitation, University Hospital Bern, Inselspital, University of Bern, CH-3010 Bern, Switzerland
- Jost, Lea B. Neurology Unit, Medicine Section, Department of Neuroscience and Movement Science, Faculty of Science and Medicine, University of Fribourg, CH-1700 Fribourg, Switzerland
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01.06.2020
Published in:
- Brain and Language. - 2020, vol. 205, p. 104775
English
This study investigated the role of the left dorsolateral prefrontal cortex (DLPFC) in language switching using theta burst stimulation (TBS) and electroencephalography in late bilinguals. After a sham-controlled baseline, participants received either excitatory or inhibitory TBS over the left DLPFC before conducting picture naming tasks in pure language blocks and a language switching block, as well as a nonverbal switching task. On the behavioral level, we found no effect of TBS. However, the ERP-analysis revealed an effect of Stimulation for the picture naming tasks, characterized by alterations in the left DLPFC at 20–72 ms, and in networks associated with conflict resolution and self-monitoring at 533–600 ms. As we did not find an interaction between Stimulation and Block (switching vs non-switching), prefrontal stimulation did not specifically modulate interlanguage control. The left DLPFC might rather be involved in enhancing maintenance of task demands and self-monitoring during language production in both mono- and bilingual contexts.
- Faculty
- Faculté des sciences et de médecine
- Department
- Médecine 3ème année
- Language
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- English
- Classification
- Biological sciences
- License
- License undefined
- Identifiers
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- RERO DOC 328475
- DOI 10.1016/j.bandl.2020.104775
- Persistent URL
- https://folia.unifr.ch/unifr/documents/308652
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