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Mouse circadian rhythm before the Kobe earthquake in 1995
Sayoko Yokoi1, Motoji Ikeya, Takeshi Yagi
1Quantum Geophysics Laboratory, Department of Earth and Space Science, Graduate School of Science, Osaka University, Osaka, Japan. ikeya@ess.sci.osaka-u.ac.jp
Bioelectromagnetics
|April 16, 2003
Abstract:
Mouse circadian diagrams recorded at Osaka University showed unusual mouse behavior before the Kobe earthquake on January 17th, 1995. The locomotive activities on January 16th showed drastic increases, several times above the standard deviation, during both sleep and active periods, indicating that mice perceived of some preseismic signals.