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Different aspects of the P300 component, recorded in a prototypical subject. (A) Topography plots for the attended item in two different time frames. R-squared scale on the right of the insert. (B) The time courses at the Cz and at the Fz electrodes of the voltages for stimuli including (dashed line) or not including (continuous line) the target stimuli. (C) Corresponding R-squared time course that indicates a statistical difference between the target and non-target stimuli.
