Perception
If telepathy or clairvoyance were accepted as phenomena, different controls would be needed for school physics experiments. Psychological experiments (including those reported in this journal) would be extremely hard to do; though fortunately they are not considered by authors or requested by referees. But perhaps we don’t think enough about how to experiment on perceptions of consciousness, or become sufficiently conscious of assumptions behind our experiments.
Gregory R L, 2003, “Animal consciousness” Perception 32(12) 1411 – 1413