We analyzed the activity of human electroencephalogram (EEG) during the execution of a visual attention test. by analyzing event-related potentials (ERP) associated with the onset of attended and unattended stimuli, we investigated the patterning of interactions between distant brain areas. Our resutls suggest that focalized attention to visual stimuli is associated with an increase in the spectral coherence of EEG signals recorded from temporal and parieto-occipital brain areas. This outcome supports the notion of a network of synchronous brain activation during selective visual attention.
展开▼
