God Helmet

God Helmet

The "God Helmet" refers to an experimental apparatus originally called the "Koren helmet" after its inventor Stanley Koren. It was developed by Koren and neuroscientist Michael Persinger to study creativity and the effects of subtle stimulation of the temporal lobes. Reports by participants of a "sensed presence" while wearing the God helmet brought public attention and resulted in several TV documentaries. The device has been used in Persinger's research in the field of neurotheology, the study of the neural correlates of religion and spirituality. The apparatus, placed on the head of an experimental subject, generates very weak fluctuating magnetic fields, that Persinger refers to as "complex." These fields are approximately as strong as those generated by a land line telephone handset or an ordinary hair dryer, but far weaker than that of an ordinary refrigerator magnet and approximately a million times weaker than transcranial magnetic stimulation.

Persinger reports that many subjects have reported "mystical experiences and altered states" while wearing the God Helmet. The foundations of his theory have been criticised in the scientific press, anecdotal reports by journalists, academics and documentarists have been mixed and the effects reported by Persinger have not been independently replicated. The only attempt at replication published in the scientific literature reported a failure to reproduce Persinger's effects and the authors proposed that the suggestibility of participants, improper blinding of participants or idiosyncratic methodology could explain Persinger's results. Persinger argues that the replication was technically flawed, but the Swedish researchers have stood by their replication.