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An infrequent change to an otherwise repetitive sequence of stimuli leads to the generation of mismatch negativity (MMN), even in the absence of attention. This evoked negative response occurs in the scalp-recorded electroencephalogram (EEG) over the temporal and frontal cortices, 100–250 ms after onset of the deviant stimulus. The MMN is used to detect sensory information processing. The aim of our...
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