5. The Ganzfeld Experiments (1970s-1990s)
The Ganzfeld experiments aimed to test extrasensory perception (ESP) in rigorously controlled environments. Participants were placed in sensory isolation and asked to transmit or receive mental images, purportedly via telepathy. While some meta-analyses have found statistically significant results suggesting information transfer beyond chance, critics argue these findings may result from methodological weaknesses or experimental bias. The controversy over the Ganzfeld experiments continues to fuel debate about the scientific plausibility of ESP. Read more