| 
			
 
			
  
			
			 by Beverly Rubik
 
			NOETIC SCIENCES REVIEW # 26, PAGE 10SUMMER 1993
 
			from
			
			Noetic Website 
			  
				
					
						| 
						A 
						scientist reports that ultraweak light emitted from 
						virtually all organisms is enough to spotlight the 
						difference between two worldviews:  
						the 
						mechanical and the organic. |  
			  
			Virtually all organisms give off light, 
			say scientific frontier researchers. Is this light merely an 
			insignificant waste product? Or does it mean the existence of what 
			ancient philosophies called "subtle life energies" or a "vital 
			force"—an organizing energy field which communicates within whole 
			organisms? 
 Increased recognition and respect of this subtle energy, variously 
			called "the life force", "prana", "qi", or "life energy", is a 
			common thread among the medical practices of what is today called 
			
			energy medicine.
 
			  
			A larger paradigm than mechanical reductionism, one 
			that may involve a new or at least modified concept of life, is 
			needed to accommodate the increasing number of biological and 
			medical phenomena that challenge the paradigm.  
				
				
				For example, some experimental 
				findings show beneficial effects of healers laying hands on sick 
				organisms or patients. But how is the healer-healee interaction 
				mediated? 
				
				There are profound 
				psychophysiological changes reported from the effect called 
				Kundalini-awakening in certain mystical experiences. Are they 
				due to the release of a subtle life energy? 
				
				Then there is the mystery of 
				homeopathy, an alternative medical modality in which there are 
				infinitesimal dilutions of substances, in some cases without 
				measurable numbers of active molecules present. Do they act 
				"energetically" or "informationally" on the body-mind to promote 
				healing?  
			Dozens of laboratories around the world 
			have studied a wide variety of species of plants and animals, of 
			tissues, and of single cells and have collected a substantial amount 
			of experimental evidence that all these emit a weak biological 
			light. Among the best studied are yeast, plant seedlings, and blood. 
			They’ve found that a beating heart isolated from a frog continues to
			produce light. Even human breath has proved to emit light. 
			Particularly well studied is the development of the larch tree, in 
			which changes in the light emitted correlates with various 
			developmental stages.
 This ties in with investigations of tumor tissues which show a 
			different light emission than normal tissue.
 
			  
			Further research (see 
			below) shows results that cannot be explained in terms of properties 
			of single cells, but in terms of whole tissues, suggesting a new 
			communication mechanism within the organism.
 
				
					
						| 
			  
			The Importance 
			of Coherence
 In the biophoton theory of Popp et al.4, it is critical that the 
			postulated bioelectromagnetic field within the cell be coherent, a 
			special condition in which the waves are in phase like a laser beam. 
			One reason is that coherent light sources have some remarkable 
			properties and must be regarded as integral wholes. By contrast, 
			incoherent light may be regarded as being produced by a collection 
			of independent emitters.
 
			  
			Another reason is that coherent light is 
			capable of carrying more information than incoherent light. The more 
			coherent the interaction is between the emitter and the receiver, 
			the less energy is needed for resonance, and hence for communication 
			to occur. Accordingly, the ultraweak biological light should display 
			at least some degree of coherence. Thus, experimental verification 
			of the biophysical hypothesis must demonstrate this coherence.
			 
			Ideally, one would measure the coherence directly using the 
			classical interferometer, but here the light intensities are too low 
			and of too many wavelengths. Because the biological light emission 
			is ultraweak, a quantum physical theory of coherence must be 
			invoked. There are ways of ascertaining the coherence indirectly 
			from the kinetics of the luminescence decay, but questions remain, 
			as this is on the frontier of quantum optics. In fact, this area of 
			research has attracted some of those interested in the frontiers of 
			communication and quantum optics due to the apparently unusual 
			properties of the biologically produced light.
 
 Physical theory predicts that under certain conditions an incoherent 
			light source, upon excitation by external light, would show a 
			different decay response than a coherent source. Whereas an 
			incoherent source relaxes according to an exponential relationship 
			between light intensity and time of measurement, a coherent emission 
			decays according to a hyperbolic relationship. Popp et al. and 
			others have done considerable research to measure the kinetics of 
			the decay of biological light emission from many organisms, with the 
			result that almost all of the decay curves show a hyperbolic 
			relationship.
 
			  
			Although hyperbolic decay might also be 
			observed for systems with a large number of independent emitters, 
			Popp and Li 
			10 
			maintain that under the particular conditions in which they have 
			measured hyperbolic decay for light from organisms, the long-lasting 
			hyperbolic decay observed for induced light emission is a sufficient 
			condition for coherence.
 
							
								| 
								Coherent:Two sinusoidal oscillations of the same 
								frequency are said to be mutually coherent if 
								they exhibit a constant phase relationship 
								during the course of time. For example, a laser 
								is coherent, and sunlight is partially coherent.
   
								Examples: 
								 | 
								Incoherent:All other oscillations that do not exhibit a 
								constant phase relationship during the course of 
								time. This includes, for example, all ordinary 
								incandescent light and fluorescent light 
								sources.
   
								Examples: 
								 |  
								| 
								 | 
								 |  |  
			
 
			
			Two 
			Types of Light
 
 Light emitted from organisms is of two types:
 
				
			 
			The detection of this ultraweak biological light requires sensitive photoelectric devices 
			available since about 1950. The intensities of this weak light range 
			from a few to several thousand photons per second per cm 2 
			*  However, 
			it is sensitively dependent on a variety of factors such as 
			temperature, carbon dioxide, oxygen, freshness, integrity, etc. The 
			spectrum is broad over the full optical range, from the ultraviolet 
			to the infrared.
 By a method pioneered in Japan, one can actually make images of 
			certain living tissues such as plant roots by means of their own 
			natural light emission by placing them in a darkroom on a 
			photographic plate 
			** . These 
			two-dimensional photon-images of plant seedlings show localized 
			light emission in areas of active cell division or injury. There is 
			also some indication that seedlings may serve as "light pipes", 
			transporting light from localized regions throughout the organism.
 
 Alternatively, one can make time measurements of the light intensity 
			to study dynamic processes in living systems. This offers a way to 
			study the dynamics of a whole living system non-invasively. Phenomena 
			such as circadian rhythms or the effects of stressors such as 
			chemicals or electromagnetic fields are readily seen. Whereas 
			research on this topic has been ongoing in Eastern Europe and Russia 
			since the 1920s, it was only in the late 1960s that ongoing 
			scientific inquiry began in the West, with most of the present work 
			being done in Europe and Japan 
			*** .
 
 In the 1920s, the pioneering Russian biologist Alexander Gurvich
			
			1 
			discovered that onions kept close together stimulate growth of each 
			others’ roots. He separated the roots by encasing them in different 
			materials and showed that this was not simply a chemical influence. 
			One important finding he made was that the roots are stimulated when 
			separated by quartz but not by glass. He therefore hypothesized that 
			a radiation, possibly ultraviolet light emitted by one onion and 
			absorbed by another, stimulates root cell division. This has been 
			called the Gurvich effect, and the radiation originally called
			mitogenetic rays.
 
 Today modern research has confirmed many of the early phenomena 
			observed by Gurvich. For example, what he called the "pre-mitotic 
			flare", a burst of light emitted just before cell division, has been 
			demonstrated in synchronized yeast cultures. In general, growing 
			cell cultures radiate more light than those in which growth has 
			ceased. "Degradation radiation", the intense burst of light emitted 
			from damaged or dying cells, has also been confirmed, regardless of 
			the cause of death. The kinetics of the decay of the light emission 
			provides information about whether these agents destroy or merely 
			disturb life processes.
 
 Ultraweak biological light emission has been implicated in 
			connection with other biological phenomena as well. For example, 
			there are Eastern European reports by Kaznacheev and others
			
			2 
			on the alleged transfer of "pathological information" by means of 
			this light.
 
			  
			What is known as the "cytotoxic effect" involves two 
			cell cultures separated by at least a few centimeters and by means 
			of a quartz or glass window. Under certain conditions, a poisoned, 
			dying culture apparently communicates a long-range electromagnetic 
			signal that initiates pathological changes and even death of the 
			second culture.  
			  
			Similar to Gurvich’s original experiments with onion 
			roots, positive results have been obtained using a quartz barrier, 
			but not glass, supporting the notion that the signal is ultraviolet 
			radiation. This research has not yet been replicated in the West.
			 
				
					
						
							
							We are chinks in the lantern through 
			which the One Great Light shines.—Sufi saying
 
 
			"Biochemical" Versus "Biophysical"
 
 There are two schools of interpretation of the phenomenon.
 
				
				
				The 
			"biochemical school" maintains that the ultraweak biological light 
			is an insignificant waste product of certain biochemical reactions. 
				
				
				Alternatively, the "biophysical school", which sometimes refers to 
			the light as "biophoton emission" 
				****, maintains 
			that it is indicative of an endogenous, innate, electromagnetic 
			field pervading the entire organism, which may act as both sender 
			and receiver of the biophotons that are "electromagnetic 
			bio-information" used in regulating life processes. 
				 
			 According to many in the biochemical school, the extremely low 
			intensities and the broad spectral range of the light are considered 
			as evidence that the phenomenon is biologically insignificant. These 
			researchers maintain that the light emission is due to 
			heterogeneous, localized phenomena in various parts of the cell with 
			different sources of emission from unrelated processes.  
			  
			 For example,
			Zhuravlev 
			3 
			maintains that the light emission is accidental "leakage" from 
			various metabolic reactions, a spontaneous transformation of 
			chemical energy into light.  
			  
			 From in vitro biochemical studies it is 
			known that chemical reactions involving strong electronic 
			excitations of free radical species, such as peroxides, may emit 
			light. From this perspective, ultraweak biological light emission is 
			considered to be chemiluminescence—physiologically insignificant, 
			waste energy. Considerable experimental support from biochemical 
			evidence abounds. Because the biochemical view is also consistent 
			with the dominant biological paradigm of molecular reductionism, it 
			has been widely accepted.
 The competing viewpoint, the biophysical interpretation, maintains 
			that the ultraweak biological light arises globally from within the 
			whole organism or cell. Experiments show that interfering with a 
			living system increases the intensity of the light emitted. 
			Actually, this observation may support either interpretation, but 
			the drastic and similar changes in light intensity under the 
			influence of virtually all external agents could indicate that the 
			light emitted is a centrally regulated response of the whole.
 
 Cooperative interactions between molecules or regions within the 
			cell might be involved at the very least. It has been demonstrated 
			that the spectral distribution or color of the light is independent 
			of the type of external perturbation. This observation supports the 
			biophysical viewpoint, because chemiluminescence should lead to 
			spectral changes depending on the perturbation. For example, the 
			intensity of the biological light emitted may be greatly enhanced 
			for a small increase in concentration of a toxic agent, contrary to 
			standard chemiluminescence theory that predicts a linear 
			relationship between them.
 
 In addition, the complexity of the temperature dependence of the 
			light emission cannot be understood within the framework of the 
			classical biochemical model based on individual reactions.
 
 These observations, among others, suggest central control within the 
			living state that is nonlocal and possibly electromagnetic in 
			nature. Many significant correlations between features of the weak 
			biological light and a number of fundamental biological processes, 
			such as cell division, death, and major shifts in metabolism, exist. 
			These correlations may indicate that the light is a sensitive, 
			global expression of biological regulatory processes.
 
 One frequent argument against the biophysical hypothesis is that 
			cells are optically opaque and therefore cannot use light for 
			intercellular communication. However, experiments testing the tissue 
			transparency show that this objection does not hold. The 
			transparency of tissues to the light from organisms is at least two 
			orders of magnitude higher than that of comparable artificial light 
			of higher intensity.
 
			  
			 The high transparency may reflect the high 
			degree of coherence of biophotons. Furthermore, in certain media the 
			coherence of incident light actually increases with the distance 
			traveled, due to multiple propagation and diffraction. Biophoton 
			theory even predicted these optical characteristics of living 
			tissues. Moreover, it is well known that certain deeply situated 
			organs such as the pineal gland and the brain are light sensitive. 
			All of this would allow for a rapid, extensive biocommunication 
			network in the body through light.
 DNA may be involved in biological light emission. Changes in DNA 
			conformation, that is, molecular shape changes, are known to occur 
			when certain chemicals such as ethidium bromide are added to cells, 
			and the light emitted from them changes in a direct, quantitative 
			fashion. Cell fractionation studies show that most of the light 
			comes from isolated cell nuclei. Moreover, isolated chromatin—the 
			thread of DNA as it exists in resting cells which consists of a 
			complex of nucleic acids and proteins—emits more intense light than 
			cell nuclei.
 
 A well-developed biophysical hypothesis for the ultraweak biological 
			light is that of Popp et al.4 
			who propose that the biophotons are released from a coherent 
			electromagnetic field within the organism that serves as a basis of 
			communication in living tissues.
 
 In this model, the biophoton is trapped and reemitted by DNA, which 
			undergoes physical resonance, resulting in light emission with at 
			least some coherence, in which the light waves dance together in 
			synchrony like a corps de ballet. Cellular biochemistry is thus 
			conceptualized as a highly dynamic, space-time structure with 
			long-range order. Biochemical processes may be integrated by the 
			endogenous bioelectromagnetic field that has a primary 
			organizational and informational role. Conformational states of DNA 
			may serve as the photon storage of the coherent modes of the 
			electromagnetic field within the cell.
 
 A detailed model has been proposed by Nagl and Popp
			
			5 
			in which cellular DNA is considered as a high energy, electronically 
			excited molecular complex that both chemically and energetically 
			regulates all nuclear information transfer in the cell. In this 
			model the biophoton emission from the DNA is energy emitted from the 
			cell that contains information about the state of the whole cell. 
			Furthermore, emission and absorption of biophotons by DNA regulates 
			the energy state of both DNA and the whole cell.
 
 Similar models of life involving endogenous physical fields have 
			been advanced by others. For example, Burr and Northrup’s
			
			6 
			model is that of a complex electrodynamic field that is in part 
			determined by its atomic components, and which in part determines 
			the behavior and orientation of those components. The concept of the 
			morphogenetic field, conceived independently by Gurvich
			
			7 
			in 1922 and Weiss 
			8 
			in 1926, was believed to orchestrate embryonic development. Of 
			course, the concept of an organizing field in biology evokes shades 
			of vitalism.
 
			  
			 In 1839 Claude Bernard 
			
			9 
			wrote,  
				
				"The vital force directs phenomena 
				that it does not produce; the physical agents produce phenomena 
				that they do not direct."  
			Vitalism was cast out long ago when 
			modern biologists adopted mechanical reductionism, and any 
			suggestion of a regulatory field governing life challenges this 
			paradigm.
 Nonetheless, a growing body of experimental evidence supports the 
			biophysical hypothesis. This includes research on "photochemistry 
			without light", whereby certain electronically excited chemical 
			species promote energy transfer without any energy loss whatsoever 
			and without any absorption of external light. Conversely, any light 
			emitted from such excited states indicates a loss of energy 
			efficiency. However, it is speculated that the "biophotons" released 
			are absorbed by other cells where they are used to promote 
			biochemical reactions, thereby forming the basis of "electromagnetic 
			bio-information".
 
 From another physical perspective, the spectral distribution of the 
			ultraweak biological light indicates that the living state is far 
			from equilibrium. Thus, the rate of biochemical reactions in the 
			organism should be much faster than in vitro. Indeed, this rate 
			discrepancy has been observed and remained enigmatic in the 
			conventional biochemical view of life. This evidence indirectly 
			supports a view whereby the organizing field within cells supplies 
			energy for metabolism and its regulation.
 
 Studies in this area of biocommunication are extremely difficult to 
			perform, and direct evidence is lacking. However, indirect evidence 
			comes from a large number of observations that living systems 
			respond to extremely weak electromagnetic fields, which is enigmatic 
			in the conventional biochemical view (see 
			footnote* below). In addition, 
			there is evidence that threshold values for biological responses to 
			light have been found to be much lower than those previously 
			reported.
 
 
			  
			Applications
 
 The measurement of biophoton emission looks promising as a valuable 
			complement to other analytical biological methods, because it is one 
			of very few noninvasive techniques that may permit a holistic 
			approach to the dynamics of the organism.
 
 A number of analytical and diagnostic applications measuring the 
			ultraweak biological light emission are emerging in various 
			industrial sectors of Europe and Japan, but most are so far 
			experimental. These include measurements of plant seed viability, 
			food quality and freshness, and the innocuity of cosmetic 
			ingredients on test organisms.
 
			  
			 Measurements of the light emitted 
			from barley-hops fermentation mixtures in beer-making are being used 
			to diagnose any early bacterial contamination of the brew. New tests 
			on biopsied tissue to determine the degree of malignancy of tumors 
			by physical features of the emitted light are also being made, as 
			well as their energetic response to potential remedies.
 Interesting experimental results show differences in the light 
			emitted from cancer compared to normal tissue. The decay rate of 
			ultraweak biological light is more rapid in malignant than normal 
			cells, which implies that cancer cells have a poorer photon storage 
			capacity. Photon intensity of normal cells decreases nonlinearly 
			with increasing cell density, and for cancer cells increases with 
			increasing cell density. This suggests evidence for mutual 
			long-range interactions between cells in a population, which are 
			fundamentally different for normal and cancer cells. It could also 
			be interpreted as indicating a loss of coherence with increasing 
			tumor size, compared to greater coherence in normal tissue.
 
			  
			 Furthermore, this relationship between light intensity and cell 
			density dependence, always the opposite for normal and malignant 
			cell populations, shows that the results cannot be explained in 
			terms of properties of single cells, but in terms of whole tissues, 
			again suggesting a novel communication mechanism within the 
			organism.
 
			  
			Conclusion
 
 The biophysical hypothesis and biophoton communication theory remain 
			controversial. Presently, it is very difficult to come to any 
			conclusions about the presence or absence of coherence in the cell 
			solely by examining the ultraweak biological light. On the other 
			hand, there is a separate line of evidence from other biological 
			research that indicates that, if not coherent, at least collective, 
			nonlinear dynamics are involved in the mechanisms by which weak 
			physical and chemical stimuli elicit biological responses.
 
 Novel biological experimentation done in tandem with physical 
			studies on the biological light emission are needed to fully examine 
			the biophysical hypothesis, and this has not yet been done. At the 
			least this hypothesis has had heuristic value and opens new horizons 
			in the holistic interpretation of the ultraweak light phenomenon and 
			its role. In my opinion, the prejudices on both sides need to be set 
			aside to move forward with a new interpretation, a synthesis that 
			encompasses all of the biochemical and biophysical evidence.
 
 If the biophysical hypothesis does prove to be scientifically valid, 
			one may see the whole biosphere as a large network of 
			electromagnetic communication. With that, perhaps scientists weren’t 
			the first to invent such long-range global communication systems.
 
 Nonetheless, if the biophysical hypothesis proves to be invalid, and 
			the ultraweak biological light is not coherent, the general concept 
			of coherence may provide a new conceptual tool for a more adequate 
			understanding of the living state. Considered as a unifying 
			principle in which the components of life exhibit a dynamic 
			relationship interconnected through space-time, it may be the 
			beginning of a new epistemology for biology.
 
 The debate between the two schools of interpretation recapitulates 
			the tension that has existed throughout much of Western history 
			between two worldviews—one that can be labeled mechanical and the 
			other organic. At present, there is still little consensus on where 
			to draw the line between inanimate and animate systems, that is, 
			between chemical systems and whole organisms, leading some to 
			conclude that there is no such line. This is the worldview that 
			predominates today in modern biology, with its focus on molecular 
			genetics.
 
			  
			On the other hand, it may be that conventional science has 
			investigated only those features of life to which its particular 
			method of abstraction applies, and that the subtler levels of life—qi, 
			prana, etc.—have escaped detection. The experimental data clearly 
			show the presence of a ubiquitous, ultraweak biological light. 
			 
			  
			Although evidence is accumulating that would support the biophysical 
			view of a deeper organizing field within the organism, further 
			research is needed to substantiate this concept.
 
 
			  
			
			Beverly Rubik has conducted research on healing and other frontier 
			topics. As Director of the Center for ’Frontier Sciences’ at Temple 
			University, she is involved in research projects and networking with 
			scientists worldwide. She is the editor of a new book,
			
			The Interrelationship Between Mind and Matter.
 
 
 
			
			References and Notes
 
				
				
				1.
				A. G. Gurwitsch, "Über den Begriff des embryonalen Feldes", 
				Archiv für Entwicklungsmechanik 51: 383-707, 1922.
 2. V. 
				P. Kaznacheev, S. P. Shurin et al., "Distant intercellular 
				interactions in a system of two tissue cultures", 
				Psychoenergetic Syst. 1: 141-142, 1976; A. F. Kirkin, 
				"Non-chemical distant interactions between cells in culture", 
				Biofizika 26: 839-843, 1981.
 
 3.
				A. I. Zhuravlev (ed.), Bioluminescence of 
				Cells and Nucleic Acids, Plenum, 1978.
 
 4. F. 
				A. Popp, K. H. Li, and Q. Gu (eds.), Recent Advances in 
				Biophoton Research, Singapore: World Scientific, 1992.
 
 5. W. 
				Nagl and F. A. Popp, "A physical (electromagnetic) model of 
				differentiation. 1. Basic considerations", Cytobios 37: 45-63, 
				1983.
 
 6. H. 
				S. Burr, The Fields of Life: Our Link with the Universe, 
				Ballantine Books, 1973.
 
 7. A. 
				G. Gurvich, Principles of Analytical Biology and the Theory of 
				Cellular Fields (in Russian), Moscow: Nauka, 1991 (Gurvich’s 
				last, posthumously published book that contains the mature 
				version of his theory of the morphogenetic field).
 
 8. P. 
				Weiss, Principles of Development, Holt, 1939.
 
 9. 
				Claude Bernard, Des Inquides de l’orgaisme, Tome III, Paris: 
				Bailliere, 1839.
 
 10. F. 
				A. Popp, K. H. Li et al., "Physical aspects of biophotons", 
				Experientia 44: 576-585, 1988.
 
 * 
				"Photon" is the word used in 
				conventional physics to mean a quantum packet of light energy, 
				expressing the particle view of the duality of light, the
				wave-particle.
 
 ** 
				This method is not to be 
				confused with Kirlian photography. Ultraweak biological light is 
				emitted from organisms in their normal, natural state, or under 
				stress. By contrast, the Kirlian aura is a corona discharge that 
				may be quite intense, which is produced by an organism in 
				contact with one pole of a high frequency electrical generator 
				of the order of 10,000 volts or more (a large voltage, hence a 
				large electrical energy input to the organism).
 
 *** 
				The highly specialized 
				literature on ultraweak biological light has not yet had impact 
				on biology as a whole, but a comprehensive technical review is 
				in preparation: B. Rubik and M. Bischof, The Question of 
				Ultraweak Light Emission from Organisms: "Superfluous" Light or 
				Electromagnetic Bio-Information?: Institute of Noetic Sciences 
				(in production).
 
 **** 
				"Biophoton", coined by 
				the biophysical school of interpretation, simply means a photon 
				emitted by an organism, although the word carries the implicit 
				connotation that there is something special about light emitted 
				from organisms.
 
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