TY - GEN
T1 - Synchronized brain activity changes related to perceptual alternations
AU - Iwayama, Koji
AU - Takahashi, Kohske
AU - Watanabe, Katsumi
AU - Hirata, Yoshito
AU - Aihara, Kazuyuki
AU - Suzuki, Hideyuki
PY - 2010/12/1
Y1 - 2010/12/1
N2 - 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.
AB - 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.
KW - Magnetoencephalography
KW - Perceptual alternation
KW - Recurrence plot
KW - Spectral clustering
UR - http://www.scopus.com/inward/record.url?scp=84866653157&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866653157&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84866653157
SN - 9784990288044
T3 - Proceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10
SP - 747
EP - 750
BT - Proceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10
T2 - 15th International Symposium on Artificial Life and Robotics, AROB '10
Y2 - 4 February 2010 through 6 February 2010
ER -