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Abstract
The suggestibility of normal, young men and women was assessed by Spiegel's Hypnosis Induction Profile (HIP) before and after weak (1 micro Tesla), burst-firing magnetic fields were applied for 20 min over either the left or over the right temporoparietal lobe or both hemispheres; a fourth group received sham treatment. Only the group that received the stimulation over the right hemisphere exhibited a marked increase in suggestibility (eta = 0.58) following the treatment. These results replicate components of several different previous experiments and suggest that attribution of symptomatic changes following exposures to weak, extremely low frequency magnetic fields, to placebo effects may not be correct. Instead, fields whose signatures contain biorelevant information may directly affect the neurocognitive processes that are associated with hypnotizability.
