Biological state and method of determining validity of action affecting biological state, determination apparatus, determination system, determination program, and recording medium storing the program

摘要

The present invention is an index capable of expressing chaos obtained from time-series data of a biological signal of a subject. (1) Correlation and / or symmetry of Lyapunov exponent and entropy, and / or (2) Higuchi fractal The present invention relates to a method for determining a biological state including using dimensions.