Tim Coolen, Alexandru Mihai Dumitrescu, Vincent Wens, Mathieu Bourguignon, Antonin Rovai, Niloufar Sadeghi, Charline Urbain, Serge Goldman, Xavier De Tiège
OBJECTIVE: To investigate cortical oscillations during a sentence completion task (SC) using magnetoencephalography (MEG), focusing on the semantic control network (SCN), its leftward asymmetry, and the effects of semantic control load. METHODS: Twenty right-handed adults underwent MEG while performing SC, consisting of low cloze (LC: multiple responses) and high cloze (HC: single response) stimuli. Spectrotemporal power modulations as event-related synchronizations (ERS) and desynchronizations (ERD) were analyzed: first, at the whole-brain level; second, in key SCN regions, posterior middle/inferior temporal gyri (pMTG/ITG) and inferior frontal gyri (IFG), under different semantic control loads...
April 26, 2024: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology