Relation between auditory stimulus intensity and response of P300 with eyes-opened and eyes-closed state

Tadanori Fukami, Tsuyoshi Shiina, Fumito Ishikawa, Yoichi Saito

Research output: Contribution to journalConference articlepeer-review

Abstract

For the purpose of examining how the auditory stimulus level and the eyesight have a mutual influence on ERP, we tried to investigate the relation between auditory stimulus level and latency of P300 with eyes-opened (EO) and eyes-closed(EC) state. Two auditory stimulus levels are selected as high-intensity (HI;80dBNHL) and low intensity (LI;10dBNHL). It has been regarded that the latency of P300 became longer as the auditory stimulus level decreased while the latency was not so different between EO and EC. However, we found that the latter did not always hold true though the former coincided with our experimental results. The latency at HI tended to be longer comparatively with EO, while in the case of LI the latency was longer with EC. Consequently, the latency variation resulting from the change of stimulus level with EC was larger than with EO. In this paper, we evaluated this phenomenon more quantitatively.

Original languageEnglish
Pages (from-to)1996-1999
Number of pages4
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume4
Publication statusPublished - 1998
Externally publishedYes
EventProceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6) - Hong Kong, China
Duration: 1998 Oct 291998 Nov 1

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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