An information processing method is executed by a computer having a control unit, wherein the control unit executes: acquiring a plurality of biological signals； detecting for each predetermined time unit a peak part of the respective biological signals； attaching identical identification information to one or a plurality of peak parts forming an identical peak when attaching peak identification information to each of the biological signals； and extracting a combination of corresponding peaks from at least two biological signals on the basis of the identification information of each time unit of the at least two biological signals.
