been observed by Gary Schwartz and colleagues at theUniversity of Arizona, who also suggest that energetic interactions between the heart and brainplay an important role in psychophysiological processes (Russek & Schwartz, 1994, 1996; Song,Schwartz, & Russek, 1998).Energetic Signatures of Psychophysiological ModesOur research has shown that information about a persons emotional state is alsocommunicated throughout the body and into the external environment via the heartselectromagnetic field (McCraty et al., 1998). As described earlier, the rhythmic beating patternsof the heart change significantly as we experience different emotions. Thus, negative emotions,such as anger or frustration, are associated with an erratic, incoherent pattern in the heartsrhythms, whereas positive emotions, such as love or appreciation, are associated with a sine-wave-like pattern, denoting coherence in the hearts rhythmic activity. In turn, these changes inthe hearts beating patterns create corresponding changes in the frequency spectra of theelectromagnetic field radiated by the heart.This is observed when spectral analysis techniques are applied to the energy waveformsgenerated by the heart (ECG or MCG) in the same way that is typically done when analyzingwaves generated by electrical activity in the brain. Different spectral patterns are correlated bothwith the patterns of beat-to-beat variability and with the current psychophysiological state. Thesespectral patterns can be interpreted as information patterns containing data about thepsychophysiological state of the individual in that moment in time. Appendix E shows waterfallplots from the ECG data used to produce the examples of the six different psychophysiologicalmodes described at the outset of this article. These reveal distinctive spectral patterns associatedwith each specific mode.The spectra of ECG recordings in Appendix E illustrate the enormous richness andcomplexity of the hearts activity and the voluminous density of information encoding andtransmission that occurs, via the movement of energy, in the bodys internal electromagneticenvironment. As already noted, similar patterns of information are encoded in the space (time)between nerve impulses and in the intervals between bursts of hormonal activity and pressurewaves. We propose, further, that information is encoded and communicated in same manner inthe intervals between heartbeats. Such an information encoding strategy would allowcommunication via the neural and hormonal pulses that are produced with each heartbeat andINTEGRAL REVIEWDecember 2009Vol. 5, No. 2also via the electromagnetic waves produced by the heart. As a means by which the heart cantransmit information both throughout the bodys psychophysiological networks and into theexternal environment, the validity of this energetic communication mechanism can beempirically verified. This concept of energetic communication provides the basis for explaininghow information about the organization and state of the system as a whole is distributedthroughout the body in an almost instantaneous way.The hearts rhythmic energetic activity lies at the center of our account. The heart generates acontinuous series of electromagnetic pulses in which the time interval between pulses varies in adynamic and complex manner. These pulsing waves of electromagnetic energy give rise to fieldswithin fields, which form interference patterns when they interact with magnetically polarizabletissues and structures. In more specific terms, we postulate that as pulsing waves of energyradiate out from the heart, the energy waves interact with organs and other structures to createinterference patterns. At the same time, the endogenous