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- W1910646055 abstract "Automatic detection of environmental change is a core component of attention. The mismatch negativity (MMN), an electrophysiological marker of this mechanism, has been studied prominently in the auditory domain, with cortical generators identified in temporal and frontal regions. Here, we combined electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) to assess whether the underlying frontal regions associated with auditory change detection also play a role in visual change detection. Twenty healthy young adults completed a visual MMN task in separate EEG and fMRI sessions. Region of interest analyses were conducted on left and right middle frontal (MFG) and inferior frontal (IFG) gyri, i.e., the frontal areas identified as potential auditory MMN generators. A significant increase in activation was observed in the left IFG and MFG in response to blocks containing deviant stimuli. These findings suggest that a frontal mechanism is involved in the detection of change in the visual MMN. Our results support the notion that frontal mechanisms underlie attention switching, as measured via MMN, across multiple modalities." @default.
- W1910646055 created "2016-06-24" @default.
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- W1910646055 creator A5059244306 @default.
- W1910646055 creator A5062458578 @default.
- W1910646055 creator A5081264422 @default.
- W1910646055 date "2015-10-01" @default.
- W1910646055 modified "2023-10-13" @default.
- W1910646055 title "A frontal attention mechanism in the visual mismatch negativity" @default.
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- W1910646055 doi "https://doi.org/10.1016/j.bbr.2015.07.022" @default.
- W1910646055 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4566935" @default.
- W1910646055 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26183650" @default.
- W1910646055 hasPublicationYear "2015" @default.
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