1. A signal processing method for identifying events in a multi-channel sensor-signal stream, comprising the steps of: inputting a section of said multi-channel sensor-signal stream, said section consisting of respective signal streams output by a plurality of sensors during a common time period; evaluating the pattern of coordination that exists between the sensor-signal streams during respective time intervals within said common time period, comparing the evaluated patterns of coordination, and detecting events in the multi-channel sensor-signal stream by determining when the patterns of coordination between the different sensor-signal streams evaluated for consecutive time intervals are similar to each other.