Synchronized brain activity changes related to perceptual alternations

Koji Iwayama, Kohske Takahashi, Katsumi Watanabe, Yoshito Hirata, Kazuyuki Aihara, Hideyuki Suzuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

When we look at ambiguous figures, perception spontaneously changes from one to the other (perceptual alternation). We measured the brain activity from subjects who observed the Necker cube, one of the most famous ambiguous figures, using magnetoencephalography (MEG). To identify the brain activity inducing perceptual alternation, we propose a novel change-point detection method using spectral clustering to recurrence plots, and apply to measured data. Synchronized activity changes were detected at parietal channels.

Original languageEnglish
Title of host publicationProceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10
Pages747-750
Number of pages4
Publication statusPublished - 2010 Dec 1
Event15th International Symposium on Artificial Life and Robotics, AROB '10 - Beppu, Oita, Japan
Duration: 2010 Feb 42010 Feb 6

Publication series

NameProceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10

Other

Other15th International Symposium on Artificial Life and Robotics, AROB '10
CountryJapan
CityBeppu, Oita
Period10/2/410/2/6

Keywords

  • Magnetoencephalography
  • Perceptual alternation
  • Recurrence plot
  • Spectral clustering

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction

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  • Cite this

    Iwayama, K., Takahashi, K., Watanabe, K., Hirata, Y., Aihara, K., & Suzuki, H. (2010). Synchronized brain activity changes related to perceptual alternations. In Proceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10 (pp. 747-750). (Proceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10).