Journal of information and communication convergence engineering

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Detection and Analysis of Event-Related Potential P300 in EEG by 4-Stimulus Oddball Paradigm

  • Jang, Yun-Seok (Department of Electrical Engineering, Pukyong National University) ;
  • Ryu, Soo-Ah (Department of Information and Communication Engineering, Pukyong National University) ;
  • Park, Kyu-Chil (Department of Information and Communication Engineering, Pukyong National University)
  • Received : 2010.02.12
  • Accepted : 2010.03.15
  • Published : 2010.04.30
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Abstract

P300 component of the event-related potential(ERP) has been studied for theoretical, empirical, and clinical applications. Nowadays the 1-, 2-, and 3-stimulus oddball paradigms are used for eliciting P300 component of EEG in the auditory stimulus experiments. In this paper, we used a method to add one more stimulus to the 3-stimulus auditory paradigm. The adding stimulus has not the same volume but the same tone of the target stimulus. The 4-stimulus oddball paradigm to use two targets is used to elicit the P300 event-related potentials. In 4-stimulus oddball paradigm, an infrequent non-target (p=0.10) is presented in addition to two infrequent targets (p=0.10) and a frequent standard (p=0.70). Two target stimuli elicited a P300 component with a parietal maximum distribution. The amplitude of the P300 in target 2 was larger than that in target 1 and the latency of the P300 in target 2 was longer than that in target 1. The P300 component due to target 2 stimuli was larger than that due to target 1 stimuli. The experimental results approve that the 4-stimulus oddball paradigm can elicit P300 component clearly. The results are compared with the results of the traditional oddball paradigm.

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