Kirlian photography is a technique that uses high-voltage, high-frequency electrical discharge to create photographic images of objects — typically living tissue — surrounded by a colourful corona of light. Discovered by Semyon Kirlian and his wife Valentina in 1939 in the Soviet Union, the technique produced striking images that looked like glowing halos around leaves, fingertips, and other organic material. The photographs were immediately claimed by some to be images of the body's aura or energy field — a claim that generated decades of research, substantial controversy, and a split between what the physics shows and what the spiritual community wants it to show. This guide explains what Kirlian photography actually captures, where the aura claim breaks down, and what the technique remains useful for.
How Kirlian Photography Works
The mechanism is well-understood physics. A Kirlian photograph is produced by placing an object directly on a photographic plate or film and applying a high-voltage (typically 15,000–100,000 volts), high-frequency electrical current. The current ionises the gases surrounding the object, creating a plasma discharge — corona discharge — that exposes the photographic medium. The result is an image of the object surrounded by colourful streamers and halos of light.
The colours and patterns of the corona depend on: the moisture content of the object, the electrical conductivity of its surface, the pressure applied during exposure, the voltage and frequency settings, and the condition of the film or plate. These are all physical variables, which matters significantly for the claims made about the technique.
The Aura Claim: What Was Asserted and What the Research Found
When Kirlian photographs of human hands showed dramatic, colourful coronas, practitioners and researchers in the Soviet Union and later the West proposed that the images represented a person's vital energy field — equivalent to the aura described in spiritual traditions. The Soviet researchers Kirlian himself worked with described a "bioplasmic" energy body that the photographs were capturing.
The most famous research testing this idea was the "phantom leaf" effect — a claim that Kirlian photographs of leaves from which a portion had been cut still showed a corona corresponding to the missing section, as if the "energy body" of the leaf remained complete. This would have been extraordinary evidence for a vital field that persisted beyond physical tissue.
Attempts to replicate the phantom leaf effect in controlled conditions produced inconsistent results, and the controlled studies that did show the effect identified contamination issues (residue from the original leaf section still on the plate) as the more parsimonious explanation. No phantom leaf effect has been reliably replicated under properly controlled conditions.
The Moisture Confound
The most significant methodological problem with using Kirlian photography as a diagnostic or spiritual tool: the primary driver of corona size and brightness is moisture content. A dry fingertip and a moist fingertip from the same person photographed seconds apart produce dramatically different Kirlian images — not because the person's energy field changed but because sweat changed the conductivity of the skin surface.
This means:
- Corona differences between individuals largely reflect differences in skin moisture, not differences in vital energy or health
- The same individual photographed under different moisture conditions shows dramatically different "aura" images
- Emotional states that increase sweating (anxiety, excitement) produce stronger coronas — which can be interpreted as "emotional energy" but is more accurately explained by the sympathetic nervous system's effect on sweat glands
When moisture is controlled for carefully in experiments, most of the dramatic variation in Kirlian images disappears. This doesn't make the technique useless, but it does make it a poor instrument for the aura claims made on its behalf.
What Kirlian Photography Can Actually Be Used For
Despite the failure of its spiritual applications to survive controlled testing, the technique has legitimate applications:
Crop science and plant physiology
Kirlian photographs of leaves and plants have been used to assess moisture content, stress responses, and the physiological condition of plant material. The corona patterns correlate with measurable physiological states in ways that are consistent with the underlying physics.
High-voltage research and education
The technique is used in physics education to demonstrate corona discharge and plasma phenomena in accessible, visually striking ways.
Industrial quality control
Corona discharge imaging is used in industrial applications to detect surface defects, assess electrical properties of materials, and identify moisture distribution in manufactured components.
Art and photography
Kirlian images have been widely used in art for their intrinsic aesthetic qualities — the patterns are genuinely beautiful and strange, whatever they represent physically.
Kirlian Photography in the Modern Aura Tradition
Despite the failure of controlled research to support the aura interpretation, Kirlian photography remains embedded in the modern aura community and is used by some practitioners as evidence of the energy field they describe. The honest position: the photographs show real phenomena, but those phenomena are explained by known physics (corona discharge), and attempts to demonstrate health, emotional, or spiritual information in Kirlian images beyond what moisture content explains have not held up to rigorous testing.
This doesn't settle the question of whether the aura as a non-physical phenomenon exists — that's a separate claim that Kirlian photography neither proves nor disproves. What it settles is that these particular photographs aren't reliable evidence for it. If you're interested in aura-based self-insight through a different avenue, our free aura colour quiz uses personality and behavioural profiling rather than physical measurement.
Frequently Asked Questions
Is Kirlian photography the same as aura photography done in booths at fairs?
No. Modern aura photography at New Age fairs typically uses a different technology — biofeedback sensors that measure skin conductance and translate the readings into a computer-generated colour field overlaid on a photograph. These are not Kirlian images and use no high-voltage discharge. The colour assignments are based on proprietary algorithms, not on physical measurement of an energy field. Both are distinct from what traditional aura readers claim to perceive directly.
Did Soviet scientists consider Kirlian photography scientific evidence for a bioplasmic energy body?
Some did during the 1960s and 1970s, and the research received significant state funding in the Soviet Union. However, the claims about bioplasmic bodies and phantom leaf effects were not replicated under controlled conditions, and by the 1980s mainstream Soviet science had largely moved away from the energy-body interpretation while retaining interest in the physical phenomenon of corona discharge.
Can emotional states change Kirlian photographs?
Yes, but not in the way the spiritual community typically interprets it. Emotional states that activate the sympathetic nervous system (anxiety, excitement, arousal) increase sweating, which increases skin conductance, which produces stronger and more expansive coronas. This is a measurable physiological effect — but it's moisture, not emotion, being captured. The corona is a proxy for sympathetic activation via moisture, not a direct image of emotional energy.
What happened to Semyon Kirlian after his discovery?
Kirlian and his wife continued developing the technique through the 1970s. The Soviet government eventually sponsored significant research into the phenomenon. Kirlian died in 1978. His technique became globally known through Lynn Schroeder and Sheila Ostrander's 1970 book Psychic Discoveries Behind the Iron Curtain, which brought Soviet parapsychology research to Western audiences and sparked the aura photography boom of the 1970s and 1980s.
Are there any health diagnostics uses of Kirlian photography that have been validated?
Not in mainstream medicine. Some practitioners have claimed that Kirlian images can detect cancer, disease states, or nutritional deficiencies before they show clinically. None of these claims have been replicated in controlled trials. The moisture confound makes it nearly impossible to extract clinically meaningful health information from Kirlian images independent of what could be obtained by simply measuring skin conductance directly.