Knowra Ganzfeld experiment Ganzfeld experiment A sensory-reduction procedure used in parapsychology to test whether a person can identify a target viewed by someone at a distant location. It combines a uniform visual field with masking noise.
Ganzfeld stimulation : A condition of uniform, unpatterned sensory input, often created with translucent eye covers and steady noise. It reduces patterned sensory input during the receiver’s attempted identification.
Wolfgang Metzger : A German psychologist known for research on perception and the visual phenomenon later called the Ganzfeld effect. His work described the perceptual effects that inspired the experimental sensory condition.
Skeptical analysis of parapsychology : Critical examination of paranormal claims using methodological, statistical, and conventional explanatory standards. Critics have disputed whether ganzfeld results exclude ordinary information leakage and analytic bias.
Parapsychology : The study of alleged psychic phenomena, including telepathy, clairvoyance, and psychokinesis. Ganzfeld experiments became one of this field’s best-known experimental approaches.
Telepathy : The alleged transfer of information between minds without known sensory communication. The experiment tests whether a receiver can identify a target without ordinary access to it.
Ganzfeld effect : Perceptual changes produced by prolonged exposure to a uniform, unstructured sensory field. The experiment borrows its sensory condition from this broader perceptual phenomenon.
Sensory leakage : Unintended access to information through ordinary sensory channels during an experiment. It can mimic anomalous target identification if blinding or isolation fails.
Hyman–Honorton debate : A scholarly exchange over the evidence and methodological quality of ganzfeld telepathy studies. Their disagreement focused attention on replication, sensory leakage, and research standards.
Target pool : The set of candidate images or other stimuli from which an experimental target is selected. The receiver’s choice is evaluated against the alternatives available in the trial.
Charles Honorton : A parapsychologist who developed and promoted modern ganzfeld telepathy experiments. His protocols helped establish the procedure as a prominent test of anomalous information transfer.
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