1. A method of detecting the occurrence of events from a signal, comprising: receiving the signal; transforming, using a processor, the signal to generate a transformed signal; generating, using the processor, a scalogram based at least in part on the transformed signal; detecting an artifact within the scalogram, wherein the artifact is a high-energy broad-scale cone shaped region of the scalogram; calculating characteristics of the detected artifact; and analyzing, using the processor, the characteristics of the detected artifact within the scalogram to detect an occurrence of a physiological event.