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Sensed presence and mystical experiences are predicted by suggestibility, not by the application of transcranial weak complex magnetic fields

Pehr Granqvist, Mats Fredrikson, Patrik Unge, Andrea Hagenfeldt, Sven Valind, Dan Larhammar, Marcus Larsson

Neuroscience Letters December 10, 2004 DOI: 10.1016/j.neulet.2004.10.057 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Double-blind experiment Peer reviewed
Sample size 89
Population General population
Topics Mystical experience
Keywords Suggestibility Transcranial magnetic stimulation Personality Population Developmental psychology
Citations 189
Key findings No evidence was found for any experiential effects of weak complex waveform TMS fields, and suggestibility may account for previously reported effects.

Abstract

Transcranial magnetic stimulation (TMS) with weak (micro Tesla) complex waveform fields have been claimed to evoke the sensed presence of a sentient being in up to 80% in the general population. These findings have had a questionable neurophysiological foundation as the fields are approximately six orders of magnitude weaker than ordinary TMS fields. Also, no independent replication has been reported. To replicate and extend previous findings, we performed a double-blind experiment (N=89), with a sham-field control group. Personality characteristics indicating suggestibility (absorption, signs of abnormal temporal lobe activity, and a "new age"-lifestyle orientation) were used as predictors. Sensed presence, mystical, and other somatosensory experiences previously reported from the magnetic field stimulation were outcome measures. We found no evidence for any effects of the magnetic fields, neither in the entire group, nor in individuals high in suggestibility. Because the personality characteristics significantly predicted outcomes, suggestibility may account for previously reported effects. Our results strongly question the earlier claims of experiential effects of weak magnetic fields.

Comparable studies

Other randomized controlled trials on mystical experience, most cited first.

Study Year Design Participants
Rapid and sustained symptom reduction following psilocybin treatment for anxiety and depression in patients with life-threatening cancer: a randomized controlled trial Patients with cancer-related anxiety and depression 2016 Double-blind, placebo-controlled, crossover trial n = 29
Psilocybin can occasion mystical-type experiences having substantial and sustained personal meaning and spiritual significance Hallucinogen-naïve adults reporting regular participation in religious or spiritual... 2006 Double-blind study n = 36
Psilocybin occasioned mystical-type experiences: immediate and persisting dose-related effects. Healthy adults, mostly hallucinogen-naïve 2011 Randomized controlled trial n = 18
Mystical experiences occasioned by the hallucinogen psilocybin lead to increases in the personality domain of openness Healthy adults 2011 Double-blind controlled study
Mystical-type experiences occasioned by psilocybin mediate the attribution of personal meaning and spiritual significance 14 months later Hallucinogen-naïve adults reporting regular participation in religious/spiritual... 2008 Double-blind study with follow-up n = 36

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