A study on the psychophysiological functions of event-related potential in human information processing

Constitutive parts of the human brain potentials seem to be related with some events in human information processing. The event-related potentials (ERPs) are wildly used to evaluate the specific relations between particular aspects of the waveform. and concomitants of mental activity. In this paper, the variations in the attention for specific information are presented by using latencies and the amplitudes of P300 which is one of ERP components. The process of the integrated judgment of the given multiple information simultaneously is examined. The variant of oddball task, in which the stimulation of the visual sense and the auditory sense is used as multiple information sources, is executed. In comparison between the stimulation which pays attention and the stimulation which does not pay attention, and in comparison between the multiple information sources and the single information source, the different process with alteration in P300 latencies and amplitudes is suggested. In addition, other characteristic ERP components are elicited.