Revealing the spatiotemporal brain dynamics of covert speech compared with overt speech: A simultaneous EEG-fMRI study

• Published in: NEUROIMAGE Vol. 293; p. 120629
• Main Authors: Zhang, Wei, Jiang, Muyun, Teo, Kok Ann Colin, Bhuvanakantham, Raghavan, Fong, LaiGuan, Sim, Wei Khang Jeremy, Guo, Zhiwei, Foo, Chuan Huat Vince, Chua, Rong Hui Jonathan, Padmanabhan, Parasuraman, Leong, Victoria, Lu, Jia, Gulyás, Balázs, Guan, Cuntai
• Format: Journal Article Publication
• Language: English
• Published: United States Elsevier Inc 01.06.2024; Elsevier Limited; Elsevier
• Subjects: Aphasia; Biochips; Brain; Brain mapping; Cognitive ability; Computer applications; Covert speech; EEG; Electroencephalography; Experiments; Functional connectivity; Functional magnetic resonance imaging; Implants; Left putamen; Localization; Magnetic resonance imaging; Medical imaging; Neural networks; Neuroimaging; Overt speech; Precentral gyrus; Putamen; Scanners; Simultaneous EEG-fMRI; Speaking; Speech; Speech disorders; Supplementary motor area; Tomography; Covert speech; Functional connectivity; Left putamen; Overt speech; Simultaneous EEG-fMRI

•Utilized simultaneous EEG-fMRI to compare the precise spatiotemporal brain dynamics between covert speech (CS) and overt speech (OS).•Identified earlier event-locked EEG activation in the left putamen for CS compared with OS.•Identified inhibited functional connectivity between the left putamen and...