Anomaly or Artifact? Comments on Bem and Honorton

When Bem and Honorton published results claiming telepathy worked in their ganzfeld experiments -- where a "receiver" in a relaxed, sensory-deprived state tries to pick up mental images from a "sender" -- skeptic Ray Hyman got an invitation to respond in the same prestigious journal. His reanalysis of their 330 sessions uncovered a striking pattern that became a big deal in later debates. He found that hit rates were strongly tied to how often a particular target image appeared in the pool (correlation of .83 -- remarkably high). Even more damning, when experimenters prompted participants and targets came up repeatedly, hit rates shot from a dismal 14% to an impressive 44.5%. That's a huge jump, and it points toward a mundane explanation: some targets were just easier to guess because they showed up more often, not because of psychic ability. Hyman also noted that the claimed effect was really a mash-up of very different results for video clips versus still images, undermining the idea of a consistent, replicable phenomenon. His bottom line: sloppy randomization and uneven target frequencies could account for what looked like evidence of psi. This critique became a cornerstone concern that ganzfeld researchers had to wrestle with for years afterward.